impleader 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 legal procedure by which a defendant brings into an action a new party who may be liable for all or part of the plaintiff's claim against the defendant
impleader - Legal Definition
A procedure under which one of the parties brings in a third party, typically in an attempt to hold the third party liable on a claim or counterclaim made against the party who is bringing in the third party.