Hypertext Webster Gateway: "pignut"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Pignut \Pig"nut\, n. (Bot.)
(a) See {Groundnut}
(d) .
(b) The bitter-flavored nut of a species of hickory ({Carya
glabra, or porcina}); also, the tree itself.
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Groundnut \Ground"nut`\ (-n[u^]t`), n. (Bot.)
(a) The fruit of the {Arachis hypog[ae]a} (native country
uncertain); the peanut; the earthnut.
(b) A leguminous, twining plant ({Apios tuberosa}), producing
clusters of dark purple flowers and having a root
tuberous and pleasant to the taste.
(c) The dwarf ginseng ({Aralia trifolia}). [U. S.] --Gray.
(d) A European plant of the genus {Bunium} ({B. flexuosum}),
having an edible root of a globular shape and sweet,
aromatic taste; -- called also {earthnut}, {earth
chestnut}, {hawknut}, and {pignut}. [1913 Webster]
From WordNet (r) 1.7 (wn)
pignut
n : an American hickory tree having bitter nuts [syn: {pignut
hickory}, {brown hickory}, {black hickory}, {Carya glabra}]
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