airbrasive

[ air-brey-siv, -ziv ]
/ ˈɛərˌbreɪ sɪv, -zɪv /
Dentistry.

noun

an instrument for cutting tooth structure by means of a stream of abrasive particles under gas or air pressure.

adjective

noting or pertaining to the technique of using this instrument.

Origin of airbrasive

First recorded in 1940–45; air1 + (a)brasive