反生物战 fǎnshēngwùzhàn biological warfare defense Origin Definitions Defs Strokes Stroke Words Sentences Sents 反 fǎn affix [anti-] (bound form) anti-; counter-生物战 生物戰 shēngwùzhàn biological warfare biological or germ warfare; military operations that use bacteria, viruses, or other toxins to kill or incapacitate people, livestock, and crops