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nitrogen
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English Dictionary: nitrogen by the DICT Development Group
3 results for nitrogen
From WordNet (r) 3.0 (2006) [wn]:
nitrogen
n
  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
    Synonym(s): nitrogen, N, atomic number 7
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
   Nitrogen \Ni`tro*gen\, n. [L. nitrum natron + -gen: cf. F.
      nitrog[8a]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.

From The Elements (22Oct97) [elements]:
   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.
  
  
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