01 a. Of, pertaining to, or containing, niter; of the quality of niter, or resembling it.
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1.
Of, pertaining to, or containing, niter; of the quality of niter, or resembling it.
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2.
Of, pertaining to, or designating, any one of those compounds in which nitrogen has a relatively lower valence as contrasted with nitric compounds.(Chem.)
Phrases & compounds
Nitrous acid —
a hypothetical acid of nitrogen HNO2, not known in the free state, but forming a well known series of salts, viz., the nitrites.
Nitrous oxide —
See Laughing gas.