[n] edible subterranean fungus of the genus Tuber
[n] pod of the peanut vine containing usually 2 nuts or seeds; `groundnut' and `monkey nut' are British terms
[n] a common European plant having edible tubers with the flavor of roasted chestnuts
[n] any of various highly prized edible subterranean fungi of the genus Tuber; grow naturally in southwestern Europe