(Science: botany) An American tree of the genus Carya, of which there are several species. The shagbark is the c. Alba, and has a very rough bark; it affords the hickory nut of the markets. The pignut, or brown hickory, is the c. Glabra. The swamp hickory is c. Amara, having a nut whose shell is very thin and the kernel bitter. Hickory shad.
Origin: North American indian pawcohiccora (Capt. J. Smith) a kind of milk or oily liquor pressed from pounded hickory nuts. Pohickory is named in a list of virginia trees, in 1653, and this was finally shortened to hickory..