1. (

• truffle ,
• earthnut ,
• earth-ball ,

) any of various highly prized edible subterranean fungi of the genus Tuber; grow naturally in southwestern Europe ;

2. (

• earthnut ,
• Conopodium_denudatum

) a common European plant having edible tubers with the flavor of roasted chestnuts ;

3. (

• peanut ,
• earthnut ,
• goober ,
• goober_pea ,
• groundnut ,
• monkey_nut

) pod of the peanut vine containing usually 2 nuts or seeds; `groundnut' and `monkey nut' are British terms ;

4. (

• truffle ,
• earthnut ,

) edible subterranean fungus of the genus Tuber ;