cold bloodglossary / COLD BLOOD cold blood. A killer’s state of mind when committing a willful and premeditated homicide (a shooting in cold blood). See COOL BLOOD. Cf. HEAT OF PASSION. 词条贡献者 译员雪梅,国际知名法学院劳动法专业,专注翻译各种与劳动雇佣有关的法律文件。