防血凝 Traditional form: 防血凝 Pinyin (reading): fángxuèníng Definitions: anti-coagulant Characters: 防 - to protect, to defend, to guard against 血 - blood 凝 - to coagulate, to congeal; to freeze Traditional characters: 防 - to protect, to defend, to guard against 血 - blood 凝 - to coagulate, to congeal; to freeze