Webster's Revised Unabridged Dictionary · 1913

Hyposulphuric

Hyposulphuric , adjective

[Prefix hypo- + sulphuric.]

(Chemistry) Pertaining to, or containing, sulphur in a lower state of oxidation than in the sulphuric compounds; as, hyposulphuric acid.
Collocations (1)
Hyposulphuric acid , an acid, H2S2O6, obtained by the action of manganese dioxide on sulphur dioxide, and known only in a watery solution and in its salts; -- called also dithionic acid. See Dithionic.