The FindLaw Legal Dictionary -- free access to over 8260 definitions of legal terms. Search for a definition or browse our legal glossaries.
: an action brought by a defendant in an existing action against a plaintiff or codefendant compare counterclaim, cross-appeal, cross-claim, third-party claim
Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.