| pignut | (n) an American hickory tree having bitter nuts, Syn. Carya glabra, brown hickory, black hickory, pignut hickory |
| bitternut | (n) hickory of the eastern United States having a leaves with 7 or 9 leaflets and thin-shelled very bitter nuts, Syn. swamp hickory, bitter pignut, bitter hickory, Carya cordiformis, bitternut hickory |
| Pignus | ‖n.; |
| Pignut | n. (Bot.) |