'Hyponitrous acid' definitions:
Definition of 'hyponitrous acid'
From: WordNet
noun
An explosive white crystalline weak acid (H2N2O2)
Definition of 'Hyponitrous acid'
From: GCIDE
- Hyponitrous \Hy`po*ni"trous\, a. [Pref. hypo- + nitrous.] (Chem.) Containing or derived from nitrogen having a lower valence than in nitrous compounds. [1913 Webster]
- 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}. [1913 Webster]