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.


Wordnik is becoming a not-for-profit! Read our announcement here.


Log in or sign up to get involved in the conversation. It's quick and easy.