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hyponitrous |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Hyponitrous \Hy`po*ni"trous\, a. [Pref. hypo- + nitrous.] (Chem.) Containing or derived from nitrogen having a lower valence than in nitrous compounds. {Hyponitrous acid} (Chem.), an unstable nitrogen acid, {NOH}, whose salts are produced by reduction of the nitrates, although the acid itself is not isolated in the free state except as a solution in water; -- called also {nitrosylic acid}.