Definition of oxygen

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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..

Lern More About Oxygen

Trioxide :: Trioxide (n.) An oxide containing three atoms of oxygen; as, sulphur trioxide, SO3; -- formerly called tritoxide..
Disoxygenate :: Disoxygenate (v. t.) To deprive of oxygen; to deoxidize.
Sulphamate :: Sulphacid (n.) An acid in which, to a greater or less extent, sulphur plays a part analogous to that of oxygen in an oxyacid; thus, thiosulphuric and sulpharsenic acids are sulphacids; -- called also sulphoacid. See the Note under Acid, n., 2..
Oxygenation :: Oxygenation (n.) The act or process of combining or of treating with oxygen; oxidation.
Oxidize :: Oxidize (v. t.) To remove hydrogen from (anything), as by the action of oxygen; as, to oxidize alcohol so as to form aldehyde..
Oxyhydrogen :: Oxyhydrogen (a.) Of or pertaining to a mixture of oxygen and hydrogen; as, oxyhydrogen gas..
Condensation :: Condensation (n.) A rearrangement or concentration of the different constituents of one or more substances into a distinct and definite compound of greater complexity and molecular weight, often resulting in an increase of density, as the condensation of oxygen into ozone, or of acetone into mesitylene..
Mercaptan :: Mercaptan (n.) Any one of series of compounds, hydrosulphides of alcohol radicals, in composition resembling the alcohols, but containing sulphur in place of oxygen, and hence called also the sulphur alcohols. In general, they are colorless liquids having a strong, repulsive, garlic odor. The name is specifically applied to ethyl mercaptan, C2H5SH. So called from its avidity for mercury, and other metals..
Acetyl :: Acetyl (n.) A complex, hypothetical radical, composed of two parts of carbon to three of hydrogen and one of oxygen. Its hydroxide is acetic acid..
Oxychloride :: Oxychloride (n.) A ternary compound of oxygen and chlorine; as, plumbic oxychloride..
Selenio- :: Selenio- () A combining form (also used adjectively) denoting the presence of selenium or its compounds; as, selenio-phosphate, a phosphate having selenium in place of all, or a part, of the oxygen..
Protoxidize :: Protoxidize (v. t.) To combine with oxygen, as any elementary substance, in such proportion as to form a protoxide..
Parvolin :: Parvolin (n.) A nonoxygenous ptomaine, formed in the putrefaction of albuminous matters, especially of horseflesh and mackerel..
Deoxidize :: Deoxidize (v. t.) To deprive of oxygen; to reduce from the state of an oxide.
Respiration :: Respiration (n.) The act of resping or breathing; the act of taking in and giving out air; the aggregate of those processes bu which oxygen is introduced into the system, and carbon dioxide, or carbonic acid, removed..
Dioxide :: Dioxide (n.) An oxide containing two atoms of oxygen in each molecule; binoxide.
Monoxide :: Monoxide (n.) An oxide containing one atom of oxygen in each molecule; as, barium monoxide..
Phosphorus :: Phosphorus (n.) A poisonous nonmetallic element of the nitrogen group, obtained as a white, or yellowish, translucent waxy substance, having a characteristic disagreeable smell. It is very active chemically, must be preserved under water, and unites with oxygen even at ordinary temperatures, giving a faint glow, -- whence its name. It always occurs compined, usually in phosphates, as in the mineral apatite, in bones, etc. It is used in the composition on the tips of friction matches, and for man
Semioxygenated :: Semioxygenated (a.) Combined with oxygen only in part.
Oxidator :: Oxidator (n.) A contrivance for causing a current of air to impinge on the flame of the Argand lamp; -- called also oxygenator.
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