persulphide

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• Persulphide — Per*sul phide, n. (Chem.) A sulphide containing more sulphur than some other compound of the same elements; as, iron pyrites is a persulphide; formerly called {persulphuret}. [1913 Webster] …   The Collaborative International Dictionary of English

• persulphuret — Persulphide Per*sul phide, n. (Chem.) A sulphide containing more sulphur than some other compound of the same elements; as, iron pyrites is a persulphide; formerly called {persulphuret}. [1913 Webster] …   The Collaborative International Dictionary of English

• Persulphuret — Per*sul phu*ret, n. (Chem.) A persulphide. [Obs.] [1913 Webster] …   The Collaborative International Dictionary of English

• Hydrogen disulfide — Hydrogen disulfide …   Wikipedia