Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
a knee-shaped joint consisting of two bars pivoted together at one end: when pressure is put on the joint to straighten it, opposite, outward pressures are transmitted to the open ends
Used by arrangement with John Wiley & Sons, Inc.
nounThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A joint made of two arms attached by a pivot shaped like an elbow, allowing force to be exerted at the ends of the arms as the joint is expanded.