Ni"trous (?), a. [L. nitrosus full of natron: cf. F. nitreux. See Niter.]

1.

Of, pertaining to, or containing, niter; of the quality of niter, or resembling it.

2. Chem.

Of, pertaining to, or designating, any one of those compounds in which nitrogen has a relatively lower valence as contrasted with nitric compounds.

Nitrous acid Chem., 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.

 

© Webster 1913.

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