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

Antozone :: Antozone (n.) A compound formerly supposed to be modification of oxygen, but now known to be hydrogen dioxide; -- so called because apparently antagonistic to ozone, converting it into ordinary oxygen..
Oxymuriatic :: Oxymuriatic (a.) Pertaining to, or consisting of, oxygen and muriatic acid, that is, hydrochloric acid..
Nonaerobiotic :: Nonaerobiotic (a.) Capable of living without atmospheric oxygen; anaerobiotic.
Calcium :: Calcium (n.) An elementary substance; a metal which combined with oxygen forms lime. It is of a pale yellow color, tenacious, and malleable. It is a member of the alkaline earth group of elements. Atomic weight 40. Symbol Ca..
Oxidize :: Oxidize (v. t.) To subject to the action of oxygen or of an oxidizing agent, so as to bring to a higher grade, as an -ous compound to an -ic compound; as, to oxidize mercurous chloride to mercuric chloride..
Hyperoxide :: Hyperoxide (n.) A compound having a relatively large percentage of oxygen; a peroxide.
Parvolin :: Parvolin (n.) A nonoxygenous ptomaine, formed in the putrefaction of albuminous matters, especially of horseflesh and mackerel..
Oxidize :: Oxidize (v. t.) To remove hydrogen from (anything), as by the action of oxygen; as, to oxidize alcohol so as to form aldehyde..
Mineralizer :: Mineralizer (n.) An element which is combined with a metal, thus forming an ore. Thus, in galena, or lead ore, sulphur is a mineralizer; in hematite, oxygen is a mineralizer..
Suroxide :: Suroxidate (v. t.) To combine with oxygen so as to form a suroxide or peroxide.
Weldon''s Process :: Weldon's process () A process for the recovery or regeneration of manganese dioxide in the manufacture of chlorine, by means of milk of lime and the oxygen of the air; -- so called after the inventor..
Oxygenizable :: Oxygenizable (a.) Oxidizable.
Microcrith :: Microcrith (n.) The weight of the half hydrogen molecule, or of the hydrogen atom, taken as the standard in comparing the atomic weights of the elements; thus, an atom of oxygen weighs sixteen microcriths. See Crith..
Oxyhydrogen :: Oxyhydrogen (a.) Of or pertaining to a mixture of oxygen and hydrogen; as, oxyhydrogen gas..
Metalloid :: Metalloid (n.) Now, one of several elementary substances which in the free state are unlike metals, and whose compounds possess or produce acid, rather than basic, properties; a nonmetal; as, boron, carbon, phosphorus, nitrogen, oxygen, sulphur, chlorine, bromine, etc., are metalloids..
Deutoxide :: Deutoxide (n.) A compound containing in the molecule two atoms of oxygen united with some other element or radical; -- usually called dioxide, or less frequently, binoxide..
Protoxide :: Protoxide (n.) That one of a series of oxides having the lowest proportion of oxygen. See Proto-, 2 (b)..
Sesquioxide :: Sesquioxide (n.) An oxide containing three atoms of oxygen with two atoms (or radicals) of some other substance; thus, alumina, Al2O3 is a sesquioxide..
Molecule :: Molecule (n.) A group of atoms so united and combined by chemical affinity that they form a complete, integrated whole, being the smallest portion of any particular compound that can exist in a free state; as, a molecule of water consists of two atoms of hydrogen and one of oxygen. Cf. Atom..
Oxygenation :: Oxygenation (n.) The act or process of combining or of treating with oxygen; oxidation.
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