noun 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.
SULPHYDRATE
Meaning of SULPHYDRATE in English
Webster English vocab. Английский словарь Webster. 2012