pig·nut /ˈpɪgˌnʌt/
花生米,山胡桃類,山胡桃果
Pig·nut n. Bot. (a) See Groundnut (d). (b) The bitter-flavored nut of a species of hickory (Carya glabra syn. Carya porcina); also, the tree itself.
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pignut
n : an American hickory tree having bitter nuts [syn: pignut
hickory, brown hickory, black hickory, Carya glabra]