socket wrench 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.
a wrench with a cylindrical socket that fits over a nut or bolt of a specific size and shape
socket wrench definition by American Heritage Dictionary
A wrench with a usually interchangeable socket to fit over a nut or bolt.