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Nitrogen - Dictionary Definition and Overview |
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Nitrogen : (noun)
1: a common nonmetallic element that is normally a colorless
odorless tasteless inert diatomic gas; constitutes 78
percent of the atmosphere by volume; a constituent of all
living tissues [syn: N, atomic number 7]
Based on WordNet 2.0
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Nitrogen : \Ni`tro*gen\, n. [L. nitrum natron _ -gen: cf. F.
nitrog[`e]ne. See Niter.] (Chem.)
A colorless nonmetallic element, tasteless and odorless,
comprising four fifths of the atmosphere by volume. It is
chemically very inert in the free state, and as such is
incapable of supporting life (hence the name azote still
used by French chemists); but it forms many important
compounds, as ammonia, nitric acid, the cyanides, etc, and is
a constituent of all organized living tissues, animal or
vegetable. Symbol N. Atomic weight 14. It was formerly
regarded as a permanent noncondensible gas, but was liquefied
in 1877 by Cailletet of Paris, and Pictet of Geneva.
Based on Webster's Revised Unabridged Dictionary
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Nitrogen : Symbol: N
Atomic number: 7
Atomic weight: 14.0067
Colourless, gaseous element which belongs to group 15 of the periodic
table. Constitutes ~78% of the atmosphere and is an essential part of the
ecosystem. Nitrogen for industrial purposes is acquired by the fractional
distillation of liquid air. Chemically inactive, reactive generally only
at high temperatures or in electrical discharges. It was discovered in
1772 by D. Rutherford.
Based on Webster's Revised Unabridged Dictionary (1913)
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