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(Elements & Compounds) an obsolete name for nitrogen
[C18: from French, from Greek azōtos ungirded, intended for Greek azōos lifeless]
ni•tro•gen(ˈnaɪ trə dʒən)
a colorless, odorless, gaseous element that constitutes about four-fifths of the volume of the atmosphere and is present in combined form in animal and vegetable tissues, esp. in proteins. Symbol: N; at. wt.: 14.0067; at. no.: 7; density: 1.2506 g/l at 0°C and 760 mm pressure.