groundnut

3 ENTRIES FOUND:

ground·nut

noun \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

First Known Use of GROUNDNUT

1602

groundnut

noun    (Concise Encyclopedia)

Any of several plants that bear edible fruit or other nutlike parts. Three are legumes: Arachis hypogaea, the peanut, the fruit of which is a legume or pod rather than a true nut; Apois americana, also called wild bean and potato bean, the tubers of which are edible; and Lathyrus tuberosa, also called earth-nut pea. Cyperus esculentus, nut sedge or yellow nut grass, is a papyrus relative (sedge family) that also bears edible tubers, especially in the variety called chufa or earth almond.

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