'Disulphate' definitions:

Definition of 'Disulphate'

From: GCIDE

Disulphate \Di*sul"phate\, n. [Pref. di- + sulphate.] (Chem.) (a) A salt of disulphuric or pyrosulphuric acid; a pyrosulphate. (b) An acid salt of sulphuric acid, having only one equivalent of base to two of the acid. [1913 Webster]