A truffle is a soft round sweet made with chocolate and usually flavoured with rum.
2. countable noun
A truffle is a round type of fungus which is expensive and considered very good to eat.
truffle in British English
(ˈtrʌfəl)
noun
1. Also called: earthnut
any of various edible saprotrophic ascomycetous subterranean fungi of the European genus Tuber. They have a tuberous appearance and are regarded as a delicacy
2. mainly British
a chocolate sweet resembling this fungus in shape
Word origin
C16: from French truffe, from Old Provençal trufa, ultimately from Latin tūber
truffle in American English
(ˈtrʌfəl)
noun
1.
any of an order (Tuberales) of fleshy, edible, potato-shaped ascomycetous fungi that grow underground; esp., any of a European genus (Tuber) which are cultivated and regarded as a delicacy
2.
any of a number of rich chocolate candies made to resemble this in shape and color
Word origin
< Fr truffe < OIt truffa < VL *trufera < Osco-Umb *tufer, for L tuber: see tuber