Diamine Di*am"ine (?; 104), n. [Pref. di- + amine.] (Chem.) A compound containing two amido groups united with one or more basic or positive radicals, -- as contrasted with a diamide. [1913 Webster]

Note: In chemical nomenclature, if any amine or diamine is named by prefixing the nitrogen group, the name of the latter takes the form of amido, diamido, etc., thus ethylene diamine, {C2H4.(NH2)2}, is also called diamido-ethylene. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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