war crime n: an act committed usually during an international war for which individual criminal liability will be imposed by a domestic or international tribunal
: a violation of the laws or customs of war as embodied or recognized by international treaty, court decisions, or established practice usually used in pl. NOTE: Following World War II, the Charter of the International Military Tribunal at Nuremberg first codified war crimes including crimes against humanity. Also encompassed in the legal concept of war crimes is the crime of planning or waging a war of aggression or a war in violation of international treaties.
Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.