1. [syn: buffalo nut, elk nut, oil nut]
The Collaborative International Dictionary of English v.0.48:
Butternut \But"ter*nut`\, n.
1. (Bot.) 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
2. (Bot.) The nut of the Caryocar butyrosum and Caryocar
nuciferum, of S. America; -- called also Souari nut.
WordNet (r) 3.0 (2006):
n 1: oily drupaceous fruit of rabbitwood [syn: buffalo nut,
elk nut, oil nut]