Dictionary

groundnut

noun ground·nut \ˈgran(d)-ˌnət\

Definition of GROUNDNUT

1
a :  any of several plants having edible tuberous roots; especially :  a North American leguminous vine (Apios americana) with pinnate leaves and clusters of brownish-purple fragrant flowers
b :  the root of a groundnut
2
chiefly British :  peanut
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First Known Use of GROUNDNUT

1602

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3 ENTRIES FOUND:
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