Warfarin
noun [ U ] trademark uk/ˈwɔː.fər.ɪn/ us/ˈwɔːr.fɚ.ɪn/
杀鼠灵;华法令（用作抗凝血剂）
a brand name for a substance that is used to kill rats and is also used in a slightly different form as a medical treatment in order to prevent blood from clotting (= becoming solid)