tusk /ˈtʌsk/noun 7verb 3forms 3 noun7 •One of a pair of elongated pointed teeth (either cuspids or incisors) that extend outside the mouth of an animal such as walrus, elephant or wild boar, and which continue to grow throughout the animal's life.Until the CITES sales ban, elephant tusks were the 'backbone' of the legal ivory trade. •A small projection on a (tusk) tenon. •A projecting member like a tenon, and serving the same or a similar purpose, but composed of several steps, or offsets, called teeth. •An edible fish, Brosme brosme. •A sharp point. •A tusk shell. •The share of a plough. verb3 •To gore with the tusks. •To dig up using a tusk, as boars do. •(no longer used) To bare or gnash the teeth. formstusked · tusking · tusks