/but"euhr nut'/ , n.
1. Also called white walnut . the edible oily nut of an American tree, Juglans cinerea, of the walnut family.
2. the tree itself.
3. the light-brown wood of this tree, used for making furniture.
4. the light-brown color resulting from a dye made from this tree.
5. U.S. Hist. a Confederate soldier or partisan, esp. one whose uniform was dyed with an extract from this tree.
6. See souari nut .
[ 1735-45, Amer.; so called from the nut's oiliness ]