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

Alternative spelling of entity-relationship diagram

(philosophy) The concept of reality in which material things are in the constant process of change brought about by the tension between conflicting or interacting forces, elements, or ideas.

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.

The dial of a watch or clock on which the hours have been marked with a radium compound to make them luminous

A diagram in the field of logic. / Any non-spatial, abstract diagram. / Any schematic display of the logical relationships of project activities.

(Britain) Alternative spelling of tone dialing