[tusk] n [ME, alter. of tux, fr. OE tux; akin to OE tusc tush] (bef. 12c) 1: an elongated greatly enlarged tooth (as of an elephant or walrus) that projects when the mouth is closed and serves for digging food or as a weapon; broadly: a long protruding tooth
2: one of the small projections on a tusk tenon -- tusked adj -- tusk.like adj
[2]tusk vt (1629): to dig up with a tusk; also: to gash with a tusk