nitrous acid

1. 1.

   an unstable inorganic acid known only in solution and as nitrite salts

   Broaderacid

Questions about nitrous acid

What does nitrous acid mean?

nitrous acid means "an unstable inorganic acid known only in solution and as nitrite salts".

Is nitrous acid a common word?

nitrous acid is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.