plural of diametral

any of the diamond-shaped wave patterns that appear in the supersonic exhaust plume of an aerospace propulsion system, such as a supersonic jet engine or rocket, when it is operated in an atmosphere.

In a diametral fashion.

plural of inner diameter

A diamond entirely covered with facets on the surface, and flat below, distinguished from a brilliant.

An antiparasitic drug.

Consisting of or resembling diamond. / (obsolete) Hard as diamond, adamantine.

A brown- or tan-colored diamond.

A device that is used to subject small samples of materials to exceptionally high pressures

plural of diamond ring