incisor
noun
- front teeth in most mammals
Wiktionary
Pronunciation: /ɪnˈsaɪ.zə(ɹ)/
noun
Etymology: Borrowing from New Latin incīsor, from incīdō (“to cut into, cut through”) + -tor (“-er, -or”, agent noun suffix).
- A narrow-edged tooth at the front of the mouth of mammals, between the canines and adapted for cutting; in humans there are four in each jaw.