'Hypochlorous acid' definitions:

Definition of 'hypochlorous acid'

(from WordNet)
noun
A weak unstable acid known only in solution and in its salts; used as a bleaching agent and as an oxidizing agent

Definition of 'Hypochlorous acid'

From: GCIDE
  • Hypochlorous \Hy`po*chlo"rous\, a. [Pref. hypo- + chlorous.] (Chem.) Pertaining to, or derived from, chlorine having a valence lower than in chlorous compounds. [1913 Webster]
  • Hypochlorous acid (Chem.), an acid derived from chlorine, not known in a pure state, but forming various salts, called hypochlorites. [1913 Webster]