Sulphydrate

Sul`phy´drate


n.1.(Chem.) A compound, analogous to a hydrate, regarded as a salt of sulphydric acid, or as a derivative of hydrogen sulphide in which one half of the hydrogen is replaced by a base (as potassium sulphydrate, KSH), or as a hydrate in which the oxygen has been wholly or partially replaced by sulphur.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.