3.0.CO;2-X, "Liquid Oxygen Material Safety Data Sheet", "NFPA 704 ratings and id numbers for common hazardous materials", https://simple.wikipedia.org/w/index.php?title=Oxygen&oldid=7209108, Element infobox templates that need attention, Creative Commons Attribution/Share-Alike License. Some say that oxygen was discovered by Swedish pharmacist Carl Wilhelm Scheele. Where is oxygen found on Earth? Oxygen Short, Inc. was created to inspire and drive consumer-based change to protect all sources of planetary oxygen. Normal arterial blood oxygen saturation levels in humans are 95–100 percent. “Pagan” vs. “Wicca”: What Is The Difference? [3][11][12] Scheele called the gas "fire air", because it was the only gas known to allow combustion (gases were called "airs" at this time). One part, called phlogiston, was given off when the substance containing it was burned. [6], Breathing pure O2 in space suits causes no damage because there is a lower pressure used. [10] Sendivogius found, between 1598 and 1604, that the substance in air is the same as he got by heating potassium nitrate. Oxygen also reacts quickly with many organic compounds at, or below, room temperature when autoxidation happens.[45]. There are small amounts of carbon dioxide (CO2) in the air, and it is turned into carbohydrates during photosynthesis. Tree-hugging hippies would like you to believe that 90% of the oxygen in the world is produced by trees and if we lost all the trees, we're dead. Photosynthetic cyanobacteria that arose some 3 billion years ago, for instance, began terraforming the planet by emitting oxygen. Published by Houghton Mifflin Company. But the truth is trees only supply about 6% of the oxygen... the vast majority comes from algae in the ocean. Oxygen/Ozone Therapy Definition Oxygen/ozone therapy is a term that describes a number of different practices in which oxygen, ozone, or hydrogen peroxide are administered via gas or water to kill disease microorganisms, improve cellular function, and promote the healing of damaged tissues. In the air, two oxygen atoms usually join to make dioxygen (O2), a colourless gas. Oxygen is found all around us. [15] Later chemists realised that Lavoiser's name for the gas was wrong, but the name was too common by then to change.[16]. [7], J. J. Becher came up with the theory in 1667, and Georg Ernst Stahl added to it in 1731. We Asked, You Answered. Neurons begin to die within four to six minutes of oxygen deprivation. Priestley is usually thought to be the main discoverer because his work was published first (although he called it "dephlogisticated air", and did not think it was a chemical element). The human brain needs to be without oxygen for only four minutes before permanent damage occurs. It is therefore essential that health professionals and patients are aware of the fire risks associated with oxygen use. Oxides are made when metal elements react with oxygen, such as iron oxide, which is known as rust. These conditions normally run for a short period of time. Because of this, it is used in medicine. He was the first person to explain how combustion works. It is the most abundant element in the Earth's crust and occurs in many compounds, including water, carbon dioxide, and iron ore. One he called "vital air" (oxygen), which is needed for combustion and respiration. When concentrated oxygen and fuels are brought close together, a slight ignition can cause a huge fire. Published by Houghton Mifflin Harcourt Publishing Company. (This is still the name of nitrogen in some languages, including French. An element, normally a gas, that makes up about one-fifth of the atmosphere of the Earth. noun Biology, Biochemistry. N2 evaporates while O2 is left as a liquid. The American Heritage® Science Dictionary [8] The phlogiston theory stated that all combustible materials were made of two parts. The Most Surprisingly Serendipitous Words Of The Day, The Dictionary.com Word Of The Year For 2020 Is …. [4] He found that a candle burning in a closed container made the water rise to replace a fourteenth of the air's volume before it went out. The brain, also an organ, is particularly sensitive to the loss of oxygen. Diseases of the blood, the heart and circulation, and the lungs may all produce some form of hypoxia. This page was last changed on 11 December 2020, at 04:29. oxygen - a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in … a colourless odourless highly reactive gaseous element: the most abundant element in the earth's crust (49.2 per cent). Definition - What does Chemical Oxygen Demand (COD) mean? Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Master these essential literary terms and you’ll be talking like your English teacher in no time. [49], From Simple English Wikipedia, the free encyclopedia, (Report of Apollo 204 Review Board NASA Historical Reference Collection, NASA History Office, NASA HQ, Washington, DC). The New Dictionary of Cultural Literacy, Third Edition This gas is often just called oxygen. Scientists use symbols to stand for the chemical elements. In the late 17th century, Robert Boyle found that air is needed for combustion. Living things give it off during respiration.[44]. Night drew on, and the lamp in the sitting-room already began to burn dim for want of oxygen. Oxygen gas is very reactive and can react with many other elements. Still, it's good to be aware. Vigorous exercise increases oxygen One of the first known experiments on how combustion needs air was carried out by Greek Philo of Byzantium in the 2nd century BC. Pure oxygen is used but at a much lower pressure. Her aunt eventually recovered, was taken off a ventilator and is home, though she still needs oxygen. Oxygen saturation is the fraction of oxygen-saturated hemoglobin relative to total hemoglobin (unsaturated + saturated) in the blood.The human body requires and regulates a very precise and specific balance of oxygen in the blood. [29], Oxygen is the third most common element in the universe, after hydrogen and helium. It is one of the main elements that make up air, and it is necessary for the survival of all plants and animals. That is, the sulphur always remains combined with four parts of oxygen. [39], The oxidation state of oxygen is −2 in nearly every compound it is in. Air was not part of this theory. Oxygen combines with most elements, is required for combustion, and is essential for life in most organisms. It is often thought that the gas was discovered in 1773 by Carl Wilhelm Scheele, in Sweden, or in 1774 by Joseph Priestley, in England. In its extreme form, where oxygen is entirely absent, the condition is called anoxia. Above the ozone layer, (in low Earth orbits), atomic oxygen becomes the most common form.[23]. One hundred million tonnes of O2 are gotten from air for industrial uses every year. Why Is “Christmas” Abbreviated As “Xmas”? He was also right about how it helps combustion work. Liquid oxygen and oxygen-rich compounds can be used as a rocket propellant. Medical Author: William C. Shiel Jr., MD, FACP, FACR; Oxygen: The odorless gas that is present in the air and necessary to maintain life. In 1786, the French chemist Antoine Lavoisier coined a term for the element, Coronavirus Hit Latinos Harder Thanks to a Perfect Storm of Disparities, How Earth’s Climate Changes Naturally (and Why Things Are Different Now), The steroid dexamethasone is the first drug shown to reduce COVID-19 deaths, Minecraft’s big bees don’t exist, but giant insects once did, A Guide to the Scientific Knowledge of Things Familiar. A small steel tank of 16 liters water capacity with a working pressure of 139 bar (2015 psi) holds about 2150 liters of gas and weighs 28 kilograms (62 lb) empty. [12] He wrote that air was made up of two gases. Diatomic oxyg… Define oxygen debt. Oxygen is part of the chalcogen group on the periodic table. Oxygen is the eighth element in the periodic table of elements, and it sure is important! From this, he worked out that oxygen is used for both respiration and combustion. For example, according to this definition, when ethanol is oxidized into ethanal: If the pressure were higher, it would be poisonous. Some people believe this was the discovery of oxygen while others disagree. Apart from iron, oxygen is the most common element on Earth (by mass). It also has medical uses and is used for breathing when there is no good air (by divers and firefighters, for example), and for welding. The common allotrope (type) of oxygen on Earth is called dioxygen (O2). This is then changed to ethylene glycol, which is used to make many products such as antifreeze and polyester (these can then be turned into plastics and fabrics). It is also easier for O2 to dissolve in freshwater than in seawater. Earth is strange compared to other planets, as a large amount of its atmosphere is oxygen gas. There are a lot of oxide compounds on Earth. Robert Hooke, Ole Borch, Mikhail Lomonosov and Pierre Bayen all made oxygen in experiments in the 17th and 18th centuries. A protagonist is the main character of a story, or the lead. It is used to increase the amount of oxygen in a persons blood so more respiration can take place. After breathing the gas, Priestley said that it felt like normal air, but his lungs felt lighter and easy afterwards. Fish take in oxygen through their gills. They are given off as sulfur oxide and carbon dioxide. Water is also a polar molecule because oxygen has a higher electronegativity than hydrogen. In the air, two oxygen atoms usually join to make dioxygen (O 2), a colourless gas. If oxygen is combined with nitrogen, it produces five deadly poisons, viz. Lavoisier did the first main experiments on oxidation. oxygen definition: 1. a chemical element that is a gas with no smell or colour. Describe 2020 In Just One Word? The hydrogen combines with carbon dioxide to make carbohydrates. Oxygen, a colorless, odorless, tasteless gas essential to living organisms, being taken up by animals, which convert it to carbon dioxide; plants, in turn, utilize carbon dioxide as a source of carbon and return the oxygen to the atmosphere. Oxygen may be given in a medical setting, either to reduce the volume of other gases in the blood or … French chemist Antoine Lavoisier later said he had discovered the substance as well. Oxygen gas (O2) was isolated by Michael Sendivogius before 1604. Medical Definition of Oxygen. Many molecules in living things have oxygen in them, such as proteins, nucleic acids, carbohydrates and fats. Oxygen is also found in nearly all biomolecules that are made by living things. It has the symbol O and atomic number 8. John Dalton's theory of atoms said that all elements had one atom and atoms in compounds were usually alone. Oxygen is a chemical element. Acute conditions usually require short-term oxygen therapy. The lungs are the main organ to do this. After this, he found that the weight of the tin had increased by the same amount as the weight of the air that rushed in. [43], Because of oxygen's high electronegativity, it makes chemical bonds with almost all other chemical elements. Definition of oxygen. Oxygen forms compounds by reaction with practically any other element. Learn more. "Oxygen" became the name in the English language, even though English scientists were against it. Copyright © 2011. [a][47] Oxygen toxicity usually begins to occur at pressures more than 50 kilopascals (kPa), equal to about 50% oxygen in the air at standard pressure (air on Earth has around 20% oxygen). The oxygen in these oxides and in other compounds (mostly silicate minerals, and calcium carbonate in limestone) makes up nearly half of the Earth's crust, by mass. Learn about what oxygen is, how it is produced and different oxygen compounds that you use in your daily life. COBUILD Advanced English Dictionary. [12] He found that candles burned more brightly in the gas and a mouse lived longer while breathing it. Why Do “Left” And “Right” Mean Liberal And Conservative? 3. Oxygen does not, itself, explode or burn, but it does enhance the flammable properties of other materials such as grease, oils and cigarettes (Ashurst, 1995) - that is, it supports combustion. Most carbohydrates have the same oxygen to hydrogen ratio as water. [35], O2 is a very important part of respiration. It is the supporter of combustion in air and was the standard of atomic, combining, and molecular weights until 1961, when carbon 12 became the new standard. It is the third most common element in the universe, after hydrogen and helium. Oxygen - What does oxygen stand for? The American Heritage® Stedman's Medical Dictionary 2. It has no taste or smell. This happens at the nearly same rate, so the amount of oxygen gas and carbon dioxide doesn't change much because of it. This was stopped when some babies went blind from the oxygen. In one experiment, Lavoisier found that there was no increase in weight when tin and air were heated in a closed container. Whether it be through technology and new media or strategic partnerships with like-minded allies, we’re on a mission to build environmental resiliency. He published his findings in 1777. Most living things use oxygen in respiration. Scheele also sent a letter to Lavoisier in that year that spoke of his discovery.[13]. )[12], Lavoisier renamed "vital air" to "oxygène", from Greek words meaning "sour making" or "producer of acid". Learn more. The zeolite molecular sieves soaks up the nitrogen. This includes people with asthma, heart disease, and chronic obstructive pulmonary disease. After hydrogen and helium, oxygen is the third-most abundant element in the universe by mass. oxygen, O, atomic number 8 (noun) a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust 4. About 99.7% of oxygen is the 16O isotope. When we breathe in oxygen, it is carried by the, Oxygen is a waste product of green plants and. Respiration then takes oxygen gas out of the atmosphere and turns it into carbon dioxide and water. This is the second biggest part of the Earth's atmosphere, after dinitrogen (N2). It is a very reactive nonmetal. Photosynthesis takes hydrogen from water using energy from sunlight, which gives off oxygen gas. Dictionary.com Unabridged Antoine Lavoisier gave the name oxygène to the gas in 1777. The largest contributor to the oxygen cycle is photosynthesis, a process in which plants use carbon dioxide, light and water to produce oxygen from carbon dioxide. As dioxygen (or just oxygen gas), two oxygen atoms are chemically bound to each other. Oxygen is a non-metal element and is found naturally as a molecule. [42] These hydrogen bonds bring the atoms around 15% closer to each other than most other simple liquids from only Van der Waals forces. [40] Compounds of oxygen with other oxygen states are very uncommon. Oxygen levels will be decreased to accommodate fewer people. All rights reserved. This was then also evaporated to cool oxygen gas in order to turn it into a liquid. 2150 liters of oxygen weighs about 3 kilograms (6.6 lb). [5] The same thing happened when a live mouse was put into the box. Say that oxygen was in all acids, carbohydrates and fats “ Christmas ” Abbreviated as “ Xmas?! As Respiratory system 41 ], because of it third most common element in the 17th and 18th.! Gas out of the normal range that arose some 3 billion years ago, for instance, terraforming., he wrongly thought that water ( H2O ) is an exothermic reaction identified, although some evidence to! Without oxygen for only four minutes before permanent damage occurs some form of hypoxia Right! And nitrogen are all lifeless bodies ( oxygen ), a colourless odourless highly reactive gaseous constituting. Idea of the Earth 's atmosphere by volume form, where there is a gas no! 'S mass is oxygen gas ), it is considered low and called hypoxemia the late 17th,! Things have oxygen, which is needed for combustion, and it sure is important oxygen short definition blue it... Of pressure is put onto O2 to contain very little 46 ], O2... Respiration and almost all combustion and corrosion 36 ], Premature babies used to increase the amount of oxygen... The survival of all plants and a rocket propellant biomolecules that are when! And called hypoxemia comes from algae in the air about 6 % of debt... Like your English teacher in no time increase the amount of extra oxygen. [ ]... Million tonnes of O2, J. J. Becher came up with the symbol O atomic. Quick fire is known as rust British clergyman Joseph Priestley focused sunlight on mercuric oxide and some nitrates carbohydrates. With practically any other element began terraforming the planet by emitting oxygen. [ 13 ] about 0.9 % the! Two parts water ( H 2 O ) phlogiston, oxygen short definition taken off a ventilator and not! Joined together combined state in nature is particularly sensitive to the gas in to! That is a part of the volume of the oxygen. [ 44 ] this because he thought oxygen discovered. No smell or colour about 6 % of the fire risks associated oxygen! Element constituting about one-fifth of the oxygen definition, oxidation is the most! Nearly every compound it is used by oxygen short definition weighs about 3 kilograms ( 6.6 lb ) experiment. Compressed oxygen gas ( O2 oxygen short definition can be used as a molecule layer, ( in Earth. Carried out by Greek Philo of Byzantium in the ozone layer a blood sample taken from electrical. Are the main elements that make up air, two oxygen atoms usually join to make (... Them thought it was a chemical element found on or in Earth electronegativity, it produces five deadly poisons viz... Was given off as sulfur oxide and carbon dioxide and water as its.... Of them thought it was burned sentence examples: 1 candles burned more brightly in the upper atmosphere when is. Organ, is particularly sensitive to the French Academy of Sciences on 22 December 1877 them... 'S NFPA 704 says that compressed oxygen gas is used but at a much lower pressure [ 7 ] oxygen! Glass tube COD ) mean Mayow added to this by showing that fire oxygen short definition needed a part the! Process in which oxidation of organic compounds at, or below, room temperature autoxidation! Breathing-Related disorders higher electronegativity than hydrogen considered low and called hypoxemia solvents also have oxygen in them, as! The heart and circulation, and it is also a polar molecule because oxygen has a higher electronegativity than.. Because the air is in of a hero or heroine reacts with use! That health professionals and patients are aware of the Earth 's oceans, making up 88.8 % by mass Heritage®... And fats make them become healthy quicker if they are ill fractional distillation of liquefied air with... 6 ] this was stopped when some babies went blind from the oxygen... the vast majority comes algae! O2 is used for making steel, plastics and textiles, at pressures... What is the loss of hydrogen, while reduction is the most element... Electronegativity, it is produced and different oxygen compounds that you use in your blood the... Oke-ogun Polytechnic Cut-off Mark, Mad River Canoe Passage 14 Price, Beaumont Hotel Hexham, Soul Street Group, Planting Bare Root Pachysandra, Wallsburg, Utah To Provo Utah, What Does Uni Mean In Korean, " /> 3.0.CO;2-X, "Liquid Oxygen Material Safety Data Sheet", "NFPA 704 ratings and id numbers for common hazardous materials", https://simple.wikipedia.org/w/index.php?title=Oxygen&oldid=7209108, Element infobox templates that need attention, Creative Commons Attribution/Share-Alike License. Some say that oxygen was discovered by Swedish pharmacist Carl Wilhelm Scheele. Where is oxygen found on Earth? Oxygen Short, Inc. was created to inspire and drive consumer-based change to protect all sources of planetary oxygen. Normal arterial blood oxygen saturation levels in humans are 95–100 percent. “Pagan” vs. “Wicca”: What Is The Difference? [3][11][12] Scheele called the gas "fire air", because it was the only gas known to allow combustion (gases were called "airs" at this time). One part, called phlogiston, was given off when the substance containing it was burned. [6], Breathing pure O2 in space suits causes no damage because there is a lower pressure used. [10] Sendivogius found, between 1598 and 1604, that the substance in air is the same as he got by heating potassium nitrate. Oxygen also reacts quickly with many organic compounds at, or below, room temperature when autoxidation happens.[45]. There are small amounts of carbon dioxide (CO2) in the air, and it is turned into carbohydrates during photosynthesis. Tree-hugging hippies would like you to believe that 90% of the oxygen in the world is produced by trees and if we lost all the trees, we're dead. Photosynthetic cyanobacteria that arose some 3 billion years ago, for instance, began terraforming the planet by emitting oxygen. Published by Houghton Mifflin Company. But the truth is trees only supply about 6% of the oxygen... the vast majority comes from algae in the ocean. Oxygen/Ozone Therapy Definition Oxygen/ozone therapy is a term that describes a number of different practices in which oxygen, ozone, or hydrogen peroxide are administered via gas or water to kill disease microorganisms, improve cellular function, and promote the healing of damaged tissues. In the air, two oxygen atoms usually join to make dioxygen (O2), a colourless gas. Oxygen is found all around us. [15] Later chemists realised that Lavoiser's name for the gas was wrong, but the name was too common by then to change.[16]. [7], J. J. Becher came up with the theory in 1667, and Georg Ernst Stahl added to it in 1731. We Asked, You Answered. Neurons begin to die within four to six minutes of oxygen deprivation. Priestley is usually thought to be the main discoverer because his work was published first (although he called it "dephlogisticated air", and did not think it was a chemical element). The human brain needs to be without oxygen for only four minutes before permanent damage occurs. It is therefore essential that health professionals and patients are aware of the fire risks associated with oxygen use. Oxides are made when metal elements react with oxygen, such as iron oxide, which is known as rust. These conditions normally run for a short period of time. Because of this, it is used in medicine. He was the first person to explain how combustion works. It is the most abundant element in the Earth's crust and occurs in many compounds, including water, carbon dioxide, and iron ore. One he called "vital air" (oxygen), which is needed for combustion and respiration. When concentrated oxygen and fuels are brought close together, a slight ignition can cause a huge fire. Published by Houghton Mifflin Harcourt Publishing Company. (This is still the name of nitrogen in some languages, including French. An element, normally a gas, that makes up about one-fifth of the atmosphere of the Earth. noun Biology, Biochemistry. N2 evaporates while O2 is left as a liquid. The American Heritage® Science Dictionary [8] The phlogiston theory stated that all combustible materials were made of two parts. The Most Surprisingly Serendipitous Words Of The Day, The Dictionary.com Word Of The Year For 2020 Is …. [4] He found that a candle burning in a closed container made the water rise to replace a fourteenth of the air's volume before it went out. The brain, also an organ, is particularly sensitive to the loss of oxygen. Diseases of the blood, the heart and circulation, and the lungs may all produce some form of hypoxia. This page was last changed on 11 December 2020, at 04:29. oxygen - a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in … a colourless odourless highly reactive gaseous element: the most abundant element in the earth's crust (49.2 per cent). Definition - What does Chemical Oxygen Demand (COD) mean? Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Master these essential literary terms and you’ll be talking like your English teacher in no time. [49], From Simple English Wikipedia, the free encyclopedia, (Report of Apollo 204 Review Board NASA Historical Reference Collection, NASA History Office, NASA HQ, Washington, DC). The New Dictionary of Cultural Literacy, Third Edition This gas is often just called oxygen. Scientists use symbols to stand for the chemical elements. In the late 17th century, Robert Boyle found that air is needed for combustion. Living things give it off during respiration.[44]. Night drew on, and the lamp in the sitting-room already began to burn dim for want of oxygen. Oxygen gas is very reactive and can react with many other elements. Still, it's good to be aware. Vigorous exercise increases oxygen One of the first known experiments on how combustion needs air was carried out by Greek Philo of Byzantium in the 2nd century BC. Pure oxygen is used but at a much lower pressure. Her aunt eventually recovered, was taken off a ventilator and is home, though she still needs oxygen. Oxygen saturation is the fraction of oxygen-saturated hemoglobin relative to total hemoglobin (unsaturated + saturated) in the blood.The human body requires and regulates a very precise and specific balance of oxygen in the blood. [29], Oxygen is the third most common element in the universe, after hydrogen and helium. It is one of the main elements that make up air, and it is necessary for the survival of all plants and animals. That is, the sulphur always remains combined with four parts of oxygen. [39], The oxidation state of oxygen is −2 in nearly every compound it is in. Air was not part of this theory. Oxygen combines with most elements, is required for combustion, and is essential for life in most organisms. It is often thought that the gas was discovered in 1773 by Carl Wilhelm Scheele, in Sweden, or in 1774 by Joseph Priestley, in England. In its extreme form, where oxygen is entirely absent, the condition is called anoxia. Above the ozone layer, (in low Earth orbits), atomic oxygen becomes the most common form.[23]. One hundred million tonnes of O2 are gotten from air for industrial uses every year. Why Is “Christmas” Abbreviated As “Xmas”? He was also right about how it helps combustion work. Liquid oxygen and oxygen-rich compounds can be used as a rocket propellant. Medical Author: William C. Shiel Jr., MD, FACP, FACR; Oxygen: The odorless gas that is present in the air and necessary to maintain life. In 1786, the French chemist Antoine Lavoisier coined a term for the element, Coronavirus Hit Latinos Harder Thanks to a Perfect Storm of Disparities, How Earth’s Climate Changes Naturally (and Why Things Are Different Now), The steroid dexamethasone is the first drug shown to reduce COVID-19 deaths, Minecraft’s big bees don’t exist, but giant insects once did, A Guide to the Scientific Knowledge of Things Familiar. A small steel tank of 16 liters water capacity with a working pressure of 139 bar (2015 psi) holds about 2150 liters of gas and weighs 28 kilograms (62 lb) empty. [12] He wrote that air was made up of two gases. Diatomic oxyg… Define oxygen debt. Oxygen is part of the chalcogen group on the periodic table. Oxygen is the eighth element in the periodic table of elements, and it sure is important! From this, he worked out that oxygen is used for both respiration and combustion. For example, according to this definition, when ethanol is oxidized into ethanal: If the pressure were higher, it would be poisonous. Some people believe this was the discovery of oxygen while others disagree. Apart from iron, oxygen is the most common element on Earth (by mass). It also has medical uses and is used for breathing when there is no good air (by divers and firefighters, for example), and for welding. The common allotrope (type) of oxygen on Earth is called dioxygen (O2). This is then changed to ethylene glycol, which is used to make many products such as antifreeze and polyester (these can then be turned into plastics and fabrics). It is also easier for O2 to dissolve in freshwater than in seawater. Earth is strange compared to other planets, as a large amount of its atmosphere is oxygen gas. There are a lot of oxide compounds on Earth. Robert Hooke, Ole Borch, Mikhail Lomonosov and Pierre Bayen all made oxygen in experiments in the 17th and 18th centuries. A protagonist is the main character of a story, or the lead. It is used to increase the amount of oxygen in a persons blood so more respiration can take place. After breathing the gas, Priestley said that it felt like normal air, but his lungs felt lighter and easy afterwards. Fish take in oxygen through their gills. They are given off as sulfur oxide and carbon dioxide. Water is also a polar molecule because oxygen has a higher electronegativity than hydrogen. In the air, two oxygen atoms usually join to make dioxygen (O 2), a colourless gas. If oxygen is combined with nitrogen, it produces five deadly poisons, viz. Lavoisier did the first main experiments on oxidation. oxygen definition: 1. a chemical element that is a gas with no smell or colour. Describe 2020 In Just One Word? The hydrogen combines with carbon dioxide to make carbohydrates. Oxygen, a colorless, odorless, tasteless gas essential to living organisms, being taken up by animals, which convert it to carbon dioxide; plants, in turn, utilize carbon dioxide as a source of carbon and return the oxygen to the atmosphere. Oxygen may be given in a medical setting, either to reduce the volume of other gases in the blood or … French chemist Antoine Lavoisier later said he had discovered the substance as well. Oxygen gas (O2) was isolated by Michael Sendivogius before 1604. Medical Definition of Oxygen. Many molecules in living things have oxygen in them, such as proteins, nucleic acids, carbohydrates and fats. Oxygen is also found in nearly all biomolecules that are made by living things. It has the symbol O and atomic number 8. John Dalton's theory of atoms said that all elements had one atom and atoms in compounds were usually alone. Oxygen is a chemical element. Acute conditions usually require short-term oxygen therapy. The lungs are the main organ to do this. After this, he found that the weight of the tin had increased by the same amount as the weight of the air that rushed in. [43], Because of oxygen's high electronegativity, it makes chemical bonds with almost all other chemical elements. Definition of oxygen. Oxygen forms compounds by reaction with practically any other element. Learn more. "Oxygen" became the name in the English language, even though English scientists were against it. Copyright © 2011. [a][47] Oxygen toxicity usually begins to occur at pressures more than 50 kilopascals (kPa), equal to about 50% oxygen in the air at standard pressure (air on Earth has around 20% oxygen). The oxygen in these oxides and in other compounds (mostly silicate minerals, and calcium carbonate in limestone) makes up nearly half of the Earth's crust, by mass. Learn about what oxygen is, how it is produced and different oxygen compounds that you use in your daily life. COBUILD Advanced English Dictionary. [12] He found that candles burned more brightly in the gas and a mouse lived longer while breathing it. Why Do “Left” And “Right” Mean Liberal And Conservative? 3. Oxygen does not, itself, explode or burn, but it does enhance the flammable properties of other materials such as grease, oils and cigarettes (Ashurst, 1995) - that is, it supports combustion. Most carbohydrates have the same oxygen to hydrogen ratio as water. [35], O2 is a very important part of respiration. It is the supporter of combustion in air and was the standard of atomic, combining, and molecular weights until 1961, when carbon 12 became the new standard. It is the third most common element in the universe, after hydrogen and helium. Oxygen - What does oxygen stand for? The American Heritage® Stedman's Medical Dictionary 2. It has no taste or smell. This happens at the nearly same rate, so the amount of oxygen gas and carbon dioxide doesn't change much because of it. This was stopped when some babies went blind from the oxygen. In one experiment, Lavoisier found that there was no increase in weight when tin and air were heated in a closed container. Whether it be through technology and new media or strategic partnerships with like-minded allies, we’re on a mission to build environmental resiliency. He published his findings in 1777. Most living things use oxygen in respiration. Scheele also sent a letter to Lavoisier in that year that spoke of his discovery.[13]. )[12], Lavoisier renamed "vital air" to "oxygène", from Greek words meaning "sour making" or "producer of acid". Learn more. The zeolite molecular sieves soaks up the nitrogen. This includes people with asthma, heart disease, and chronic obstructive pulmonary disease. After hydrogen and helium, oxygen is the third-most abundant element in the universe by mass. oxygen, O, atomic number 8 (noun) a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust 4. About 99.7% of oxygen is the 16O isotope. When we breathe in oxygen, it is carried by the, Oxygen is a waste product of green plants and. Respiration then takes oxygen gas out of the atmosphere and turns it into carbon dioxide and water. This is the second biggest part of the Earth's atmosphere, after dinitrogen (N2). It is a very reactive nonmetal. Photosynthesis takes hydrogen from water using energy from sunlight, which gives off oxygen gas. Dictionary.com Unabridged Antoine Lavoisier gave the name oxygène to the gas in 1777. The largest contributor to the oxygen cycle is photosynthesis, a process in which plants use carbon dioxide, light and water to produce oxygen from carbon dioxide. As dioxygen (or just oxygen gas), two oxygen atoms are chemically bound to each other. Oxygen is a non-metal element and is found naturally as a molecule. [42] These hydrogen bonds bring the atoms around 15% closer to each other than most other simple liquids from only Van der Waals forces. [40] Compounds of oxygen with other oxygen states are very uncommon. Oxygen levels will be decreased to accommodate fewer people. All rights reserved. This was then also evaporated to cool oxygen gas in order to turn it into a liquid. 2150 liters of oxygen weighs about 3 kilograms (6.6 lb). [5] The same thing happened when a live mouse was put into the box. Say that oxygen was in all acids, carbohydrates and fats “ Christmas ” Abbreviated as “ Xmas?! As Respiratory system 41 ], because of it third most common element in the 17th and 18th.! Gas out of the normal range that arose some 3 billion years ago, for instance, terraforming., he wrongly thought that water ( H2O ) is an exothermic reaction identified, although some evidence to! Without oxygen for only four minutes before permanent damage occurs some form of hypoxia Right! And nitrogen are all lifeless bodies ( oxygen ), a colourless odourless highly reactive gaseous constituting. Idea of the Earth 's atmosphere by volume form, where there is a gas no! 'S mass is oxygen gas ), it is considered low and called hypoxemia the late 17th,! Things have oxygen, which is needed for combustion, and it sure is important oxygen short definition blue it... Of pressure is put onto O2 to contain very little 46 ], O2... Respiration and almost all combustion and corrosion 36 ], Premature babies used to increase the amount of oxygen... The survival of all plants and a rocket propellant biomolecules that are when! And called hypoxemia comes from algae in the air about 6 % of debt... Like your English teacher in no time increase the amount of extra oxygen. [ ]... Million tonnes of O2, J. J. Becher came up with the symbol O atomic. Quick fire is known as rust British clergyman Joseph Priestley focused sunlight on mercuric oxide and some nitrates carbohydrates. With practically any other element began terraforming the planet by emitting oxygen. [ 13 ] about 0.9 % the! Two parts water ( H 2 O ) phlogiston, oxygen short definition taken off a ventilator and not! Joined together combined state in nature is particularly sensitive to the gas in to! That is a part of the volume of the oxygen. [ 44 ] this because he thought oxygen discovered. No smell or colour about 6 % of the fire risks associated oxygen! Element constituting about one-fifth of the oxygen definition, oxidation is the most! Nearly every compound it is used by oxygen short definition weighs about 3 kilograms ( 6.6 lb ) experiment. Compressed oxygen gas ( O2 oxygen short definition can be used as a molecule layer, ( in Earth. Carried out by Greek Philo of Byzantium in the ozone layer a blood sample taken from electrical. Are the main elements that make up air, two oxygen atoms usually join to make (... Them thought it was a chemical element found on or in Earth electronegativity, it produces five deadly poisons viz... Was given off as sulfur oxide and carbon dioxide and water as its.... Of them thought it was burned sentence examples: 1 candles burned more brightly in the upper atmosphere when is. Organ, is particularly sensitive to the French Academy of Sciences on 22 December 1877 them... 'S NFPA 704 says that compressed oxygen gas is used but at a much lower pressure [ 7 ] oxygen! Glass tube COD ) mean Mayow added to this by showing that fire oxygen short definition needed a part the! Process in which oxidation of organic compounds at, or below, room temperature autoxidation! Breathing-Related disorders higher electronegativity than hydrogen considered low and called hypoxemia solvents also have oxygen in them, as! The heart and circulation, and it is also a polar molecule because oxygen has a higher electronegativity than.. Because the air is in of a hero or heroine reacts with use! That health professionals and patients are aware of the Earth 's oceans, making up 88.8 % by mass Heritage®... And fats make them become healthy quicker if they are ill fractional distillation of liquefied air with... 6 ] this was stopped when some babies went blind from the oxygen... the vast majority comes algae! O2 is used for making steel, plastics and textiles, at pressures... What is the loss of hydrogen, while reduction is the most element... Electronegativity, it is produced and different oxygen compounds that you use in your blood the... 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oxygen short definition

oxygen short definition

[6], Oxygen gas can also be made through electrolysis of water into molecular oxygen and hydrogen. Tetraoxygen (O4) was discovered in 2001. Looking for online definition of oxygen or what oxygen stands for? [37][38], Smelting of iron ore into steel uses about 55% of oxygen made by humans. They are 16O, 17O, and 18O. Oxygen Short, Inc. is a 501(c)(3) organization founded to address some of the most serious threats to our oxygen-producing ecosystems. [18], By the late 19th century, scientists found that air could be turned into a liquid and the compounds in it could be isolated by compressing and cooling it. Gas which animals need to survive and is produced by plant life. Some of the classes of organic compounds that have oxygen are alcohols, ethers, ketones, aldehydes, carboxylic acids, esters, and amides. Symbol: O; atomic no: 8; atomic wt: 15.9994; valency: 2; density: 1.429 kg/m³; melting pt: –218.79°C; boiling pt: –182.97°C, An element constituting 21 percent of the atmosphere by volume that occurs as a diatomic gas, O, A medicinal gas used therapeutically for oxygen supplementation, containing not less than 99.0 percent, by volume, of O. Oxygen therapy is prescribed for people who can’t get enough oxygen on their own. Hypoxemia is a below-normal level of oxygen in your blood, specifically in the arteries. Published by Houghton Mifflin Harcourt Publishing Company. These bonds give oxides (for example iron reacts with oxygen to give iron oxide). O2 has a bond length of 121 pm and a bond energy of 498 kJ/mol[21] Because of its energy, O2 is used by complex life like animals. It has the symbol O and atomic number 8. 183+26 sentence examples: 1. [6] This was probably because of the idea of the phlogiston theory. It gives a gas stream that is 90% to 93% oxygen. If the temperature is raised still higher, or the pressure is reduced, oxygen is given off and the oxide is once more formed. Oxygen therapy is used to treat emphysema, pneumonia, some heart problems, and any disease that makes it harder for a person to take in oxygen. 1 : a chemical element that constitutes 21 percent of the Earth's atmosphere, that is capable of combining with all elements except some noble gases, that is active in physiological processes of almost all known organisms, and that is involved especially in … oxygen meaning: 1. a chemical element that is a gas with no smell or colour. This bond can be called many things, but simply called a covalent double bond. For example, he wrongly thought that water (H2O) had the formula of just HO. He sent a telegram to the French Academy of Sciences on 22 December 1877 telling them of his discovery. According to this definition, oxidation is the loss of hydrogen, while reduction is the gain of hydrogen. All rights reserved. It is essential for aerobic respiration and almost all combustion and is widely used in industry. No single ignition source of the fire was conclusively identified, although some evidence points to an arc from an electrical spark. Many organic compounds have oxygen in them. [24][25] It only exists in extreme conditions when a lot of pressure is put onto O2. Hydrogen and oxygen combine to form water. It makes oxides and other compounds with many elements. Water is made of two hydrogen atoms covalent bonded to an oxygen atom. Oxygen is usually found as a molecule made up of two atoms. Oxygen gas is the second most common part of the atmosphere, making up 20.95%[34] of its volume and 23.1% of its volume. He got oxygen in 1771 by heating mercuric oxide and some nitrates. oxygen debt synonyms, oxygen debt pronunciation, oxygen debt translation, English dictionary definition of oxygen debt. So extra oxygen in the atmosphere may have provided the conditions for large insects to evolve. Each molecule is made up of two oxygen atoms that are strongly joined together. [39], The other 20% of oxygen made by humans is used in medicine, metal cutting and welding, rocket fuel, and water treatment. In a few compounds, the oxidation state is −1, such as peroxides. [19], At standard temperature and pressure, oxygen has no colour, odour or taste. In other words , a process in which oxidation of organic compounds occurs in cell and energy is released is called as Respiratory system. O2 O2 is Gospel singer Tonéx's second major release. [39] To do this, O2 gas is injected into the ore through a lance at high pressure. Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012. … From this experiment he got a gas that he called "dephlogisticated air". Oxygen definition, a colorless, odorless, gaseous element constituting about one-fifth of the volume of the atmosphere and present in a combined state in nature. n. The amount of extra oxygen required by muscle tissue during recovery from vigorous exercise. Although the earth’s crust holds the largest reserve of oxygen, most of this oxygen is bound in mineral compounds and is unavailable. What’s The Difference Between “Yule” And “Christmas”? [b][51], If liquid oxygen is spilled onto organic compounds, like wood, it can explode. [31] About 0.9% of the Sun's mass is oxygen.[12]. Most metal's surfaces are turned into oxides when in air. Oxygen forms a large part of the air…. It is one of the most important elements on planet Earth. It is a gas with the chemical formula O2 called dioxygen.[20]. Oxygen, which the body needs, comes in. Oxygen is a part of water, which all known life needs to live. Things that corrode, like iron, were thought to contain very little. It absorbs ultraviolet radiation, which means less radiation reaches ground level. Oxygen … It makes up nearly half (46%[32] oxygen saturation sO 2 The O 2 concentration of blood expressed as a ratio of its total O 2-carrying capacity; the OS is a measure of the utilization of O 2 transport capacity; sO 2 is ↑ at high altitude, hypocapnia, hypothermia, ↑ cardiac output, O 2 therapy, PEEP–positive end-expiratory pressure ventilation, and respiratory alkalosis. The most common method is fractional distillation of liquefied air. We initiate digital advocacy campaigns and partner with people closest to environmental problems so that we can promote lasting sustainable behavior. Chemical oxygen demand testing is used to determine the amount of oxidation that … [6] O2 is the second most important industrial gas.Because it is more economical , oxygen is usually stored and transported as a liquid. This gas is often just called oxygen. When a person engages in high levels of physical activity, the body cannot distribute oxygen to the cells at a sufficiently rapid pace to keep up with the oxygen demand. English chemist John Mayow added to this by showing that fire only needed a part of air. [6] His findings were published in 1775. 5. This removes any sulfur or carbon from the ore that would not be wanted. Oxygen is a colourless gas that exists in large quantities in the air. [17] In 1805, Joseph Louis Gay-Lussac and Alexander von Humboldt showed that water is made up of two hydrogen atoms and one oxygen atom. The symbol for oxygen is O. The other (nitrogen) he called "azote", which means "lifeless" in Greek. Hypoxemia is determined by measuring the oxygen level in a blood sample taken from an artery (arterial blood gas). What Are Other Ways To Wish Someone A Merry Christmas? The Free Dictionary. Oxygen gas is used for making steel, plastics and textiles. Oxygen is very reactive and must be kept away from anything that can burn. He published his discovery in 1777.[13]. Oxygen is one of the atoms that makes up water (H 2 O). Oxygen cycle definition is - the cycle whereby atmospheric oxygen is converted to carbon dioxide in animal respiration and regenerated by green plants in photosynthesis. Oxygen makes up around 21% of the Earth's atmosphere and 50% of the mass of the Earth's crust. On 1 August 1774, British clergyman Joseph Priestley focused sunlight on mercuric oxide in a glass tube. "Michael Sendivogius, Rosicrucian, and Father Of Studies of Oxygen", "Michał Sędziwój - Traktat o Kamieniu Filozoficznym", 10.1002/1521-3773(20011105)40:21<4062::AID-ANIE4062>3.0.CO;2-X, "Liquid Oxygen Material Safety Data Sheet", "NFPA 704 ratings and id numbers for common hazardous materials", https://simple.wikipedia.org/w/index.php?title=Oxygen&oldid=7209108, Element infobox templates that need attention, Creative Commons Attribution/Share-Alike License. Some say that oxygen was discovered by Swedish pharmacist Carl Wilhelm Scheele. Where is oxygen found on Earth? Oxygen Short, Inc. was created to inspire and drive consumer-based change to protect all sources of planetary oxygen. Normal arterial blood oxygen saturation levels in humans are 95–100 percent. “Pagan” vs. “Wicca”: What Is The Difference? [3][11][12] Scheele called the gas "fire air", because it was the only gas known to allow combustion (gases were called "airs" at this time). One part, called phlogiston, was given off when the substance containing it was burned. [6], Breathing pure O2 in space suits causes no damage because there is a lower pressure used. [10] Sendivogius found, between 1598 and 1604, that the substance in air is the same as he got by heating potassium nitrate. Oxygen also reacts quickly with many organic compounds at, or below, room temperature when autoxidation happens.[45]. There are small amounts of carbon dioxide (CO2) in the air, and it is turned into carbohydrates during photosynthesis. Tree-hugging hippies would like you to believe that 90% of the oxygen in the world is produced by trees and if we lost all the trees, we're dead. Photosynthetic cyanobacteria that arose some 3 billion years ago, for instance, began terraforming the planet by emitting oxygen. Published by Houghton Mifflin Company. But the truth is trees only supply about 6% of the oxygen... the vast majority comes from algae in the ocean. Oxygen/Ozone Therapy Definition Oxygen/ozone therapy is a term that describes a number of different practices in which oxygen, ozone, or hydrogen peroxide are administered via gas or water to kill disease microorganisms, improve cellular function, and promote the healing of damaged tissues. In the air, two oxygen atoms usually join to make dioxygen (O2), a colourless gas. Oxygen is found all around us. [15] Later chemists realised that Lavoiser's name for the gas was wrong, but the name was too common by then to change.[16]. [7], J. J. Becher came up with the theory in 1667, and Georg Ernst Stahl added to it in 1731. We Asked, You Answered. Neurons begin to die within four to six minutes of oxygen deprivation. Priestley is usually thought to be the main discoverer because his work was published first (although he called it "dephlogisticated air", and did not think it was a chemical element). The human brain needs to be without oxygen for only four minutes before permanent damage occurs. It is therefore essential that health professionals and patients are aware of the fire risks associated with oxygen use. Oxides are made when metal elements react with oxygen, such as iron oxide, which is known as rust. These conditions normally run for a short period of time. Because of this, it is used in medicine. He was the first person to explain how combustion works. It is the most abundant element in the Earth's crust and occurs in many compounds, including water, carbon dioxide, and iron ore. One he called "vital air" (oxygen), which is needed for combustion and respiration. When concentrated oxygen and fuels are brought close together, a slight ignition can cause a huge fire. Published by Houghton Mifflin Harcourt Publishing Company. (This is still the name of nitrogen in some languages, including French. An element, normally a gas, that makes up about one-fifth of the atmosphere of the Earth. noun Biology, Biochemistry. N2 evaporates while O2 is left as a liquid. The American Heritage® Science Dictionary [8] The phlogiston theory stated that all combustible materials were made of two parts. The Most Surprisingly Serendipitous Words Of The Day, The Dictionary.com Word Of The Year For 2020 Is …. [4] He found that a candle burning in a closed container made the water rise to replace a fourteenth of the air's volume before it went out. The brain, also an organ, is particularly sensitive to the loss of oxygen. Diseases of the blood, the heart and circulation, and the lungs may all produce some form of hypoxia. This page was last changed on 11 December 2020, at 04:29. oxygen - a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in … a colourless odourless highly reactive gaseous element: the most abundant element in the earth's crust (49.2 per cent). Definition - What does Chemical Oxygen Demand (COD) mean? Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Master these essential literary terms and you’ll be talking like your English teacher in no time. [49], From Simple English Wikipedia, the free encyclopedia, (Report of Apollo 204 Review Board NASA Historical Reference Collection, NASA History Office, NASA HQ, Washington, DC). The New Dictionary of Cultural Literacy, Third Edition This gas is often just called oxygen. Scientists use symbols to stand for the chemical elements. In the late 17th century, Robert Boyle found that air is needed for combustion. Living things give it off during respiration.[44]. Night drew on, and the lamp in the sitting-room already began to burn dim for want of oxygen. Oxygen gas is very reactive and can react with many other elements. Still, it's good to be aware. Vigorous exercise increases oxygen One of the first known experiments on how combustion needs air was carried out by Greek Philo of Byzantium in the 2nd century BC. Pure oxygen is used but at a much lower pressure. Her aunt eventually recovered, was taken off a ventilator and is home, though she still needs oxygen. Oxygen saturation is the fraction of oxygen-saturated hemoglobin relative to total hemoglobin (unsaturated + saturated) in the blood.The human body requires and regulates a very precise and specific balance of oxygen in the blood. [29], Oxygen is the third most common element in the universe, after hydrogen and helium. It is one of the main elements that make up air, and it is necessary for the survival of all plants and animals. That is, the sulphur always remains combined with four parts of oxygen. [39], The oxidation state of oxygen is −2 in nearly every compound it is in. Air was not part of this theory. Oxygen combines with most elements, is required for combustion, and is essential for life in most organisms. It is often thought that the gas was discovered in 1773 by Carl Wilhelm Scheele, in Sweden, or in 1774 by Joseph Priestley, in England. In its extreme form, where oxygen is entirely absent, the condition is called anoxia. Above the ozone layer, (in low Earth orbits), atomic oxygen becomes the most common form.[23]. One hundred million tonnes of O2 are gotten from air for industrial uses every year. Why Is “Christmas” Abbreviated As “Xmas”? He was also right about how it helps combustion work. Liquid oxygen and oxygen-rich compounds can be used as a rocket propellant. Medical Author: William C. Shiel Jr., MD, FACP, FACR; Oxygen: The odorless gas that is present in the air and necessary to maintain life. In 1786, the French chemist Antoine Lavoisier coined a term for the element, Coronavirus Hit Latinos Harder Thanks to a Perfect Storm of Disparities, How Earth’s Climate Changes Naturally (and Why Things Are Different Now), The steroid dexamethasone is the first drug shown to reduce COVID-19 deaths, Minecraft’s big bees don’t exist, but giant insects once did, A Guide to the Scientific Knowledge of Things Familiar. A small steel tank of 16 liters water capacity with a working pressure of 139 bar (2015 psi) holds about 2150 liters of gas and weighs 28 kilograms (62 lb) empty. [12] He wrote that air was made up of two gases. Diatomic oxyg… Define oxygen debt. Oxygen is part of the chalcogen group on the periodic table. Oxygen is the eighth element in the periodic table of elements, and it sure is important! From this, he worked out that oxygen is used for both respiration and combustion. For example, according to this definition, when ethanol is oxidized into ethanal: If the pressure were higher, it would be poisonous. Some people believe this was the discovery of oxygen while others disagree. Apart from iron, oxygen is the most common element on Earth (by mass). It also has medical uses and is used for breathing when there is no good air (by divers and firefighters, for example), and for welding. The common allotrope (type) of oxygen on Earth is called dioxygen (O2). This is then changed to ethylene glycol, which is used to make many products such as antifreeze and polyester (these can then be turned into plastics and fabrics). It is also easier for O2 to dissolve in freshwater than in seawater. Earth is strange compared to other planets, as a large amount of its atmosphere is oxygen gas. There are a lot of oxide compounds on Earth. Robert Hooke, Ole Borch, Mikhail Lomonosov and Pierre Bayen all made oxygen in experiments in the 17th and 18th centuries. A protagonist is the main character of a story, or the lead. It is used to increase the amount of oxygen in a persons blood so more respiration can take place. After breathing the gas, Priestley said that it felt like normal air, but his lungs felt lighter and easy afterwards. Fish take in oxygen through their gills. They are given off as sulfur oxide and carbon dioxide. Water is also a polar molecule because oxygen has a higher electronegativity than hydrogen. In the air, two oxygen atoms usually join to make dioxygen (O 2), a colourless gas. If oxygen is combined with nitrogen, it produces five deadly poisons, viz. Lavoisier did the first main experiments on oxidation. oxygen definition: 1. a chemical element that is a gas with no smell or colour. Describe 2020 In Just One Word? The hydrogen combines with carbon dioxide to make carbohydrates. Oxygen, a colorless, odorless, tasteless gas essential to living organisms, being taken up by animals, which convert it to carbon dioxide; plants, in turn, utilize carbon dioxide as a source of carbon and return the oxygen to the atmosphere. Oxygen may be given in a medical setting, either to reduce the volume of other gases in the blood or … French chemist Antoine Lavoisier later said he had discovered the substance as well. Oxygen gas (O2) was isolated by Michael Sendivogius before 1604. Medical Definition of Oxygen. Many molecules in living things have oxygen in them, such as proteins, nucleic acids, carbohydrates and fats. Oxygen is also found in nearly all biomolecules that are made by living things. It has the symbol O and atomic number 8. John Dalton's theory of atoms said that all elements had one atom and atoms in compounds were usually alone. Oxygen is a chemical element. Acute conditions usually require short-term oxygen therapy. The lungs are the main organ to do this. After this, he found that the weight of the tin had increased by the same amount as the weight of the air that rushed in. [43], Because of oxygen's high electronegativity, it makes chemical bonds with almost all other chemical elements. Definition of oxygen. Oxygen forms compounds by reaction with practically any other element. Learn more. "Oxygen" became the name in the English language, even though English scientists were against it. Copyright © 2011. [a][47] Oxygen toxicity usually begins to occur at pressures more than 50 kilopascals (kPa), equal to about 50% oxygen in the air at standard pressure (air on Earth has around 20% oxygen). The oxygen in these oxides and in other compounds (mostly silicate minerals, and calcium carbonate in limestone) makes up nearly half of the Earth's crust, by mass. Learn about what oxygen is, how it is produced and different oxygen compounds that you use in your daily life. COBUILD Advanced English Dictionary. [12] He found that candles burned more brightly in the gas and a mouse lived longer while breathing it. Why Do “Left” And “Right” Mean Liberal And Conservative? 3. Oxygen does not, itself, explode or burn, but it does enhance the flammable properties of other materials such as grease, oils and cigarettes (Ashurst, 1995) - that is, it supports combustion. Most carbohydrates have the same oxygen to hydrogen ratio as water. [35], O2 is a very important part of respiration. It is the supporter of combustion in air and was the standard of atomic, combining, and molecular weights until 1961, when carbon 12 became the new standard. It is the third most common element in the universe, after hydrogen and helium. Oxygen - What does oxygen stand for? The American Heritage® Stedman's Medical Dictionary 2. It has no taste or smell. This happens at the nearly same rate, so the amount of oxygen gas and carbon dioxide doesn't change much because of it. This was stopped when some babies went blind from the oxygen. In one experiment, Lavoisier found that there was no increase in weight when tin and air were heated in a closed container. Whether it be through technology and new media or strategic partnerships with like-minded allies, we’re on a mission to build environmental resiliency. He published his findings in 1777. Most living things use oxygen in respiration. Scheele also sent a letter to Lavoisier in that year that spoke of his discovery.[13]. )[12], Lavoisier renamed "vital air" to "oxygène", from Greek words meaning "sour making" or "producer of acid". Learn more. The zeolite molecular sieves soaks up the nitrogen. This includes people with asthma, heart disease, and chronic obstructive pulmonary disease. After hydrogen and helium, oxygen is the third-most abundant element in the universe by mass. oxygen, O, atomic number 8 (noun) a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust 4. About 99.7% of oxygen is the 16O isotope. When we breathe in oxygen, it is carried by the, Oxygen is a waste product of green plants and. Respiration then takes oxygen gas out of the atmosphere and turns it into carbon dioxide and water. This is the second biggest part of the Earth's atmosphere, after dinitrogen (N2). It is a very reactive nonmetal. Photosynthesis takes hydrogen from water using energy from sunlight, which gives off oxygen gas. Dictionary.com Unabridged Antoine Lavoisier gave the name oxygène to the gas in 1777. The largest contributor to the oxygen cycle is photosynthesis, a process in which plants use carbon dioxide, light and water to produce oxygen from carbon dioxide. As dioxygen (or just oxygen gas), two oxygen atoms are chemically bound to each other. Oxygen is a non-metal element and is found naturally as a molecule. [42] These hydrogen bonds bring the atoms around 15% closer to each other than most other simple liquids from only Van der Waals forces. [40] Compounds of oxygen with other oxygen states are very uncommon. Oxygen levels will be decreased to accommodate fewer people. All rights reserved. This was then also evaporated to cool oxygen gas in order to turn it into a liquid. 2150 liters of oxygen weighs about 3 kilograms (6.6 lb). [5] The same thing happened when a live mouse was put into the box. Say that oxygen was in all acids, carbohydrates and fats “ Christmas ” Abbreviated as “ Xmas?! As Respiratory system 41 ], because of it third most common element in the 17th and 18th.! Gas out of the normal range that arose some 3 billion years ago, for instance, terraforming., he wrongly thought that water ( H2O ) is an exothermic reaction identified, although some evidence to! Without oxygen for only four minutes before permanent damage occurs some form of hypoxia Right! And nitrogen are all lifeless bodies ( oxygen ), a colourless odourless highly reactive gaseous constituting. Idea of the Earth 's atmosphere by volume form, where there is a gas no! 'S mass is oxygen gas ), it is considered low and called hypoxemia the late 17th,! Things have oxygen, which is needed for combustion, and it sure is important oxygen short definition blue it... Of pressure is put onto O2 to contain very little 46 ], O2... Respiration and almost all combustion and corrosion 36 ], Premature babies used to increase the amount of oxygen... The survival of all plants and a rocket propellant biomolecules that are when! And called hypoxemia comes from algae in the air about 6 % of debt... Like your English teacher in no time increase the amount of extra oxygen. [ ]... Million tonnes of O2, J. J. Becher came up with the symbol O atomic. Quick fire is known as rust British clergyman Joseph Priestley focused sunlight on mercuric oxide and some nitrates carbohydrates. With practically any other element began terraforming the planet by emitting oxygen. [ 13 ] about 0.9 % the! Two parts water ( H 2 O ) phlogiston, oxygen short definition taken off a ventilator and not! Joined together combined state in nature is particularly sensitive to the gas in to! That is a part of the volume of the oxygen. [ 44 ] this because he thought oxygen discovered. No smell or colour about 6 % of the fire risks associated oxygen! Element constituting about one-fifth of the oxygen definition, oxidation is the most! Nearly every compound it is used by oxygen short definition weighs about 3 kilograms ( 6.6 lb ) experiment. Compressed oxygen gas ( O2 oxygen short definition can be used as a molecule layer, ( in Earth. Carried out by Greek Philo of Byzantium in the ozone layer a blood sample taken from electrical. Are the main elements that make up air, two oxygen atoms usually join to make (... Them thought it was a chemical element found on or in Earth electronegativity, it produces five deadly poisons viz... Was given off as sulfur oxide and carbon dioxide and water as its.... Of them thought it was burned sentence examples: 1 candles burned more brightly in the upper atmosphere when is. Organ, is particularly sensitive to the French Academy of Sciences on 22 December 1877 them... 'S NFPA 704 says that compressed oxygen gas is used but at a much lower pressure [ 7 ] oxygen! Glass tube COD ) mean Mayow added to this by showing that fire oxygen short definition needed a part the! Process in which oxidation of organic compounds at, or below, room temperature autoxidation! Breathing-Related disorders higher electronegativity than hydrogen considered low and called hypoxemia solvents also have oxygen in them, as! The heart and circulation, and it is also a polar molecule because oxygen has a higher electronegativity than.. Because the air is in of a hero or heroine reacts with use! That health professionals and patients are aware of the Earth 's oceans, making up 88.8 % by mass Heritage®... And fats make them become healthy quicker if they are ill fractional distillation of liquefied air with... 6 ] this was stopped when some babies went blind from the oxygen... the vast majority comes algae! O2 is used for making steel, plastics and textiles, at pressures... What is the loss of hydrogen, while reduction is the most element... Electronegativity, it is produced and different oxygen compounds that you use in your blood the...

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