sulphite

noun
  1. any salt or ester of sulphurous acid, containing the ions SO 3 2– or HSO 3 (hydrogen sulphite) or the groups –SO 3 or –HSO 3 . The salts are usually soluble crystalline compounds
Derived Formssulphitic (sʌlˈfɪtɪk), adjective
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Examples from the Web for sulphite

Historical Examples of sulphite