Butternut
Pronunciation : But"ter*nut`
Part of Speech : n.
Definition : 1. (Bot.)
Defn: 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.
2. (Bot.)
Defn: The nut of the Caryocar butyrosum and C. nuciferum, of S. America; -- called also Souari nut.
Source : Webster's Unabridged Dictionary, 1913