earthnut

noun5

1. •
   Any of various roots, tubers, or pods that grow underground.
2. •
   A tuber belonging to the species Conopodium majus (syns. Bunium flexuosum, Conopodium denudatum), Bunium bulbocastanum (syn. Carum bulbocastanum), or Apios americana (syn. Apios tuberosa).
3. •
   A dwarf ginseng: Panax trifolius.
4. •
   An underground tuber of a plant of the genus Tuber.
5. •
   Synonym of peanut (Arachis hypogaea).