凝血 níngxuè coagulation Definitions Defs Origin Strokes Stroke Words Sentences Sents 凝血酶 níngxuèméi thrombin thrombin (biochemistry)凝血素 níngxuèsù hemaglutinin hemaglutinin (protein causing blood clotting)凝血酶原 níngxuèméiyuán prothrombin 抗凝血剂 kàngníngxuèjì anticoagulant