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Definition of Nitrous acid
1. Noun. An unstable inorganic acid known only in solution and as nitrite salts.
Definition of Nitrous acid
1. Noun. (inorganic compound) A weak acid, HNO2, known only in solution, or as its salts and esters, the nitrites; it has a linear structure, H-O-N=O ¹
¹ Source: wiktionary.com
Medical Definition of Nitrous acid
1.