Of, like, or containing niter.
Designating or of compounds in which nitrogen has a lower valence than in the corresponding nitric compounds.
Relating to or containing nitrogen, especially in a valence state lower than that in a comparable nitric compound.
Containing nitrogen, especially nitrogen with a valence of 3.
(chemistry) Of, or relating to nitrous acid or its derivatives.
(mycology, biology) Having a sharp odor like ammonia or nitric acid.
(dentistry, informal) Nitrous oxide.