Pronunciation: (but'ur-nut"),[key] —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.