Truffle (?; 277), 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 æstivum) are much esteemed as articles of food.
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Truffle worm (Zoöl.), the larva of a fly of the genus Leiodes, injurious to truffles.
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