butternut

Noun

but=ter=nut

WORDNET DICTIONARY

butternut(n = noun.plant) butternut tree, juglans cinerea, white walnut - North American walnut tree having light-brown wood and edible nuts; source of a light-brown dye;

has parts: butternut

is a member of genus juglans, juglans

is a kind of walnut, walnut tree

butternut(n = noun.food) - oily egg-shaped nut of an American tree of the walnut family;

is a part of butternut, butternut tree, juglans cinerea, white walnut

butternut, n.

An American tree (Juglans cinerea) of the Walnut family, and its edible fruit; -- so called from the oil contained in the latter. Sometimes called oil nut and white walnut. [1913 Webster]
The nut of the Caryocar butyrosum and Caryocar nuciferum, of S. America; -- called also Souari nut. [1913 Webster]