Webster's Revised Unabridged Dictionary · 1913

Hyposulphurous

Hyposulphurous , adjective

[Prefix hypo- + sulphurous.]

(Chemistry) Pertaining to, or containing, sulphur, all, or a part, in a low state of oxidation.
Collocations (1)
Hyposulphurous acid , (a) Thiosulphuric acid. [Obsolete] (b) An acid, H2SO2, obtained by the reduction of sulphurous acid. It is not obtained in the free state, but in an orange-yellow water solution, which is a strong reducing and bleaching agent. Called also hydrosulphurous acid.