Definition of "tusk"

One of a pair of elongated pointed teeth 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.  examples

A small projection on a (tusk) tenon.  examples

A tusk shell.  examples

(carpentry) A projecting member like a tenon, and serving the same or a similar purpose, but composed of several steps, or offsets, called teeth.  examples

A sharp point.  examples

The share of a plough.  examples

To dig up using a tusk, as boars do.  examples

To gore with the tusks.  examples

(obsolete) To bare or gnash the teeth.

A fish, the torsk (Brosme brosme).  examples