Definify.com
Webster 1913 Edition
Diamine
Di-am′ine
(?; 104)
, Noun.
[Pref.
di-
+ amine
.] (Chem.)
A compound containing two amido groups united with one or more basic or positive radicals, – as contrasted with a diamide.
☞ 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.