Definition of truffle
1a
: the dark or light edible subterranean fruiting body of several European ascomycetous fungi (especially genus Tuber)
also
: any of various similar fruiting bodies of related fungi
b
: a fungus that produces truffles
2
: a candy made of chocolate, butter, sugar, and sometimes liqueur shaped into balls and often coated with cocoa
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Merriam-Webster unabridged
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Time Traveler for truffle
The first known use of truffle was in 1591
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