(in-sī'zŏr )

[L. incisor, a cutter]

1. Something that cuts, as a tool with a sharp cutting edge; a knife.
2. One of the cutting teeth; the four front teeth in each jaw of the adult.

   SEE: anterior tooth ; dentition.

central i.One of two upper and lower incisors adjacent to the midsagittal plane.

lateral i.One of two upper and lower incisors adjacent to the central incisors.

illus.