Definitions

1. adjective

relating to or located near the incisors

“The incisal edge of the tooth was worn down from biting into hard objects.”

2. noun

the surface or edge of a tooth that is used for cutting or biting

“The dentist examined the incisal surface of the patient’s tooth.”

3. noun

a cutting or biting surface, especially of a tooth or a tool

“The incisal surface of the knife was sharpened to a fine edge.”