n. [ OF. trufle, F. truffe; akin to Sp. trufa, tartufo; of uncertain origin; perhaps from L. tuber a tumor, knob, truffle. Cf. Tuber, Trifle. ] Any one of several kinds of roundish, subterranean fungi, usually of a blackish color. The French truffle (Tuber melanosporum) and the English truffle (Tuber aestivum) are much esteemed as articles of food. [ 1913 Webster ]
Truffle worm (Zool.),
a. Provided or cooked with truffles; stuffed with truffles;