diamine

[ dahy-uh-meen, dahy-am-in ]

/ ˈdaɪ əˌmin, daɪˈæm ɪn /

a compound containing two amino groups.

Origin of diamine

First recorded in 1865–70; di-¹ + amine

With all these peculiarities of the Diamine and other direct dyes the union dyer must make himself familiar.

The Dyeing of Cotton Fabrics |Franklin Beech
It is probably a diamine, but has not been obtained in sufficient quantity for accurate chemical study.

Poisons: Their Effects and Detection |Alexander Wynter Blyth
Diamine blue B X. Work at the boil to shade, then lift, wash and dry.

The Dyeing of Cotton Fabrics |Franklin Beech
Diamine brown V. Dye at the boil to shade; lift, wash and dry.

The Dyeing of Cotton Fabrics |Franklin Beech

Phenol for claret from Diamine cutch, and for gold yellow from Primuline, etc.

The Dyeing of Cotton Fabrics |Franklin Beech

diamine

/ (ˈdaɪəˌmiːn, -mɪn, ˌdaɪəˈmiːn) /

any chemical compound containing two amino groups in its molecules