counterclaimWiktionary 原文英美v.反诉n.反诉，反索赔中文释义来自 ECDICT构词拆解countercounter-前缀claimclaim词干counter-In opposition to.词源说明From counter- + claim.释义名词noun1(law) A suit filed by a defendant against a plaintiff secondary to the original complaint.2A claim (assertion) that counters (disputes