Borer — One that bores; an instrument for boring.
Borer — A marine, bivalve mollusk, of the genus Teredo and allies, which burrows in wood. See Teredo.
Borer — Any bivalve mollusk (Saxicava, Lithodomus, etc.) which bores into limestone and similar substances.
Borer — One of the larvae of many species of insects, which penetrate trees, as the apple, peach, pine, etc. See Apple borer, under Apple.
Borer — The hagfish (Myxine).
These Also :