Bisulphide
Pronunciation : Bi*sul"phide
Part of Speech : n.
Etymology : [Pref. bi- + sulphide.] (Chem.)
Definition : Defn: A sulphide having two atoms of sulphur in the molecule; a disulphide, as in iron pyrites, FeS2; -- less frequently called bisulphuret.
Source : Webster's Unabridged Dictionary, 1913