oxygen

(Humans as organisms) gaseous element making up about 20% of the air, which is needed by living organisms for respiration
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Oxygen

O a common gaseous element, occurring naturally in the air, water, and most minerals and organic substances, essential to the reciprocal processes of plant and animal life. Highly reactive combining with other atoms, molecules and compounds through a process known as burning. Exists in the air as free molecules O2 (O3 = ozone), and also dissolv...
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Oxygen

Oxygen is a chemical element with symbol O and atomic number 8. It is a member of the chalcogen group on the periodic table and is a highly reactive nonmetallic element and oxidizing agent that readily forms compounds (notably oxides) with most elements. By mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium....
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Oxygen

• (n.) A colorless, tasteless, odorless, gaseous element occurring in the free state in the atmosphere, of which it forms about 23 per cent by weight and about 21 per cent by volume, being slightly heavier than nitrogen. Symbol O. Atomic weight 15.96. • (n.) Chlorine used in bleaching.
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oxygen

(O) Element 8, atomic weight 15.9994, a colorless, odorless gas that makes up about 1/5 of the earth's atmosphere and (in combined form) 8/9ths of earth's oceans and almost half of the earth's crust. The name is derived from the French oxygène, which means 'acid generating'.
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oxygen

(O) (ok´sĭ-jәn) a chemical element, atomic number 8, atomic weight 15.999. It is a colorless and odorless gas that makes up about 20 per cent of the atmosphere. In combination with hydrogen, it forms water; by weight, 90 per cent of water is oxygen. It is the third most abundant of all ...
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oxygen

1. <chemistry> A colourless, tasteless, odorless, gaseous element occurring in the free state in the atmosphere, of which it forms about 23 per cent by weight and about 21 per cent by volume, being slightly heavier than nitrogen. Symbol O. Atomic weight 15.96. ... It occurs combined in immense quantities, forming eight ninths by weight of wat...
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oxygen

O 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
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oxygen

(O) Oxygen atom Credit: NASA/World Book A colorless, odorless, gaseous element, the most abundant in Earth's crust (49.2% by mass) and the second most abundant in the atmosphere (28% by volume). Free oxygen is essential to the survival of all aerobic organisms. Oxy...
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oxygen

(O) Type: Term Pronunciation: ok′si-jen Definitions: 1. A gaseous element, atomic no. 8, atomic wt. 15.9994 on the basis of 12C = 12.0000; an abundant and widely distributed chemical element, which combines with most other elements to form oxides and is essential to animal and plant life. 2. The molecular form of oxygen, O
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Oxygen

[Marie Serneholt song] `Oxygen` is the third single by the Swedish pop music singer Marie Serneholt, released from her first album Enjoy the Ride in 2006. After so much speculation about Marie`s third single, promotional copies of the song were sent to Swedish radios in the second week of October. The video was premiered on 26 October on Sw...
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Oxygen

Ox'y·gen noun [ French oxygène , from Greek ............ sharp, acid + root of ............ to be born. So called because originally supposed to be an essential part of every acid .] 1. (Chemistry) A colorless, tasteless, odorless, gaseous element occurring in the free stat...
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Oxygen

A colorless, odorless and tasteless gas that makes up about 20% of the air we breathe (and at least half the weight of the entire solid crust of the earth) and which combines with most of the other elements to form oxides. Oxygen is essential to human, animal and plant life.
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Oxygen

A colorless, odorless and tasteless gas that makes up about 20% of the air we breathe (and at least
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oxygen

A colorless, odorless gas. It is needed for animal and plant life. Oxygen that is breathed in enters the blood from the lungs and travels to the tissues.
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Oxygen

A colorless, odorless, tasteless, gaseous chemical element, the most abundant of all elements. Oxyge
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Oxygen

A colourless and odourless element that is essential for most life forms on earth. The name is derived from the French oxygène, which means 'acid generating'. Symbol O Also known as Vital air.Discovered1774 Priestley publishes his work on oxygen.AbundanceThe most abundant element on earth, making up about 1/5 of the earth's atmosphere and 8/9ths o...
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Oxygen

A colourless, odourless, tasteless, non-metallic, gaseous element.
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Oxygen

a gas that is colourless, odourless, and tasteless; essential to almost all forms of life
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oxygen

A gas which comprises about 21% of normal air. Yeast require oxygen for healthy reproduction; this is why the wort should be aerated at pitching time. At any other stage of the brewing or fermentation process, oxygen is not desirable, because it can oxidize compoinds in the wort or beer, resulting in stale flavors.
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Oxygen

A gas which is present in the air and which is absorbed by the blood from the air we breathe. It is necessary for the proper functioning of the body cells.
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oxygen

A gaseous element that constitutes about 21 percent of the air we breathe. Elemental molecular oxygen consists of two oxygen atoms bonded together. A photochemical reaction of oxygen is (ultimately) responsible for the production of ozone in the stratosphere. Oxygen concentrations found in ice core ...
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Oxygen

A gaseous element which makes up approximately 20% of the earths atmosphere. It is usually found in the molecular ... form. Oxygen is the most abundant element on earth
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Oxygen

Air enriched with extra oxygen to aid breathing. Room air is 21 percent oxygen.
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Oxygen

An element occurring free as a colorless, odorless, tasteless gas in the atmosphere, of which it forms about 23% by weight and 21% by volume, being slightly heavier than nitrogen.
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