from The Century Dictionary and Cyclopedia
- n. A bolt- or screw-nut with wing-like projections; a thumb-nut; a finger-nut.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any tree of the genus Pterocarya; fruit is a small winged nutlet; Caucasus to southeastern Asia
- n. a threaded nut with winglike projections for thumb and forefinger leverage in turning
Sorry, no etymologies found.