Hypertext Webster Gateway: "hyponitrous"
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}.
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