(organic chemistry) Any compound having two amide groups / (dated, organic chemistry) hydrazine

A diamond that has been mined in a war zone and sold in order to finance the conflict. / A diamond that has been illegally mined by criminals and sold on the black market.

Synonym of diamond in the rough

An even-sided twill, in which the weave produces a diamond (rhomboid) pattern. / (countable) A fabric woven with this pattern.

plural of diamond twill

Either of two venomous rattlesnakes, of the genus Crotalus, from southern United States and Mexico, that have diamond-shaped markings on their backs: Crotalus adamanteus and Crotalus atrox.

plural of diamide

plural of diamidine

(organic chemistry) Any organic compound having two amidine groups, such as pentamidine

An artificial diamond used as adornment, such as a rhinestone. / A diamante poem.