A diamond of quality too low to be gem-grade but useful in industry, typically as an abrasive, because of its hardness.

plural of industrial diamond

A power saw with a blade set with industrial diamonds for cutting very hard materials.

plural of diamond crossing

(design) A type of lightweight metal stock with a regular pattern of raised diamonds or lines (anti-slip surfacing). / (flooring) A plate of such material.

(medicine, first aid) A very stable method of carrying a spine board with one carrier at the head end, one at the foot end and one at each side.

plural of diamond carry

plural of diamond lane

(Canada, US) A freeway lane designated for sole use by high occupancy vehicles.

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.