n. & v.
--n.
1. a long pointed tooth, esp. protruding from a closed mouth, as in the elephant, walrus, etc.
2 a tusklike tooth or other object.
--v.tr. gore, thrust at, or tear up with a tusk or tusks.
Phrases and idioms:
tusk shell
1. any of various molluscs of the class Scaphopoda.
2 its long tubular tusk-shaped shell.
Derivatives:
tusked adj. (also in comb.). tusky adj.
Etymology: ME alt. of OE tux var. of tusc: cf. TUSH(2)