1. Are large teeth found in many carnivorous mammals, used for shearing flesh and bone in a scissor- or shear-like way. In the Carnivora, the carnassials are the modified fourth upper premolar and the first lower molar. These teeth are also referred to as sectorial teeth. (wikipedia.org)
2. The last upper premolar and first lower molar teeth of a carnivore; having sharp edges for cutting flesh. (wordnetweb.princeton.edu)
Syn: Sectorial teeth