in dentistry, cylinders, disks, and other cutting instruments to which numerous small diamond pyramids have been attached by a plating of metal.
di·a·mond cut·ting ins·tru·ments
(dīmŏnd kŭting instrŭ-mĕnts) In dentistry, cylinders, discs, and instruments to which numerous small diamond pyramids have been attached by a plating of metal.