truffle

noun

Any of various edible fungi, of the genus Tuber, that grow in the soil in southern Europe; the earthnut.

I love the earthy flavor of truffle in my pasta.

意味（1）

Any of various edible fungi, of the genus Tuber, that grow in the soil in southern Europe; the earthnut.

意味（2）

(by analogy) Ellipsis of chocolate truffle (“creamy chocolate confection, in the form of a ball, covered with cocoa powder”).