knuckle joint definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- any articulation, or point of movement, between two bones forming a knuckle
- a hinged joint formed by a knuckle on one part that fits between two knuckles on another part
knuckle joint definition by American Heritage Dictionary
A hinged joint in which a pin fastens the ends of two rods, one of which has an eye that fits between the two perforated projections of the other.