butternut

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. An eastern North American walnut (Juglans cinerea) having light-brown wood, pinnately compound leaves, and a deeply furrowed nut enclosed in an egg-shaped, sticky, aromatic husk. Also called white walnut.
2. n. The nut of this tree, having an edible sweet kernel.
3. n. The wood of this tree, used for furniture, boxes, and interior finishes.
4. n. The bark of this tree.
5. n. A brownish dye obtained from the husks of the fruits of this tree.
6. n. Clothing dyed with butternut extract, especially the uniforms of Confederate soldiers in the Civil War.
7. n. Informal A Confederate soldier or partisan in the Civil War.
8. n. See souari nut.

Century Dictionary and Cyclopedia

1. n. The fruit of Juglans cinerea, an American tree, so called from the oil it contains; also, the tree itself. The tree bears a resemblance in its general appearance to the black walnut (J. nigra), but the fruit is long, pointed, and viscous, the nut furrowed and sharply jagged, and the wood soft but close-grained and light-colored, turning yellow after exposure. The wood takes a fine polish, and is largely used in interior finish and in cabinet-work. The inner bark furnishes a brown dye, and is used as a mild cathartic. Also called white walnut.
2. n. The nut of Caryocar nuciferum, a lofty timber-tree of Guiana, natural order Ternstrœmaceæ. The nuts have a pleasant taste, and are exported to some extent. They are also known as souari- or suwarrow-nuts.
3. n. A name applied during the civil war in the United States to Confederate soldiers, in allusion to the coarse brown homespun cloth, dyed with butternut, often worn by them.

Wiktionary

1. n. A North American walnut tree, Juglans cinerea, or the wood, bark, or nut of this tree.
2. n. A dye made from the fruit of this tree.
3. n. informal Butternut squash

GNU Webster's 1913

1. n. (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 white walnut.
2. n. (Bot.) The nut of the Caryocar butyrosum and Caryocar nuciferum, of S. America; -- called also Souari nut.

WordNet 3.0

1. n. North American walnut tree having light-brown wood and edible nuts; source of a light-brown dye
2. n. oily egg-shaped nut of an American tree of the walnut family