pignut Meaning, Definition & Usage
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noun an American hickory tree having bitter nuts
black hickory; Carya glabra; brown hickory; pignut hickory.
WordNet
Pig"nut noun
Definitions
(Bot.) (a) See Groundnut (b) The bitter-flavored nut of a species of hickory ( Carya glabra, ∨ porcina ); also, the tree itself.