门牙
Incisor \In*ci"sor\ (?; 277), n. [NL.] (Anat.) One of the teeth in front of the canines in either jaw; an incisive tooth. See {Tooth}. Incisor \In*ci"sor\, a. Adapted for cutting; of or pertaining to the incisors; incisive; as, the incisor nerve; an incisor foramen; an incisor tooth.
incisor n : a tooth for cutting or gnawing; located in the front of the mouth in both jaws