noun 下载 🔗分享 凝血酶 An enzyme in blood that facilitates blood clotting by converting fibrinogen to fibrin (by means of ionized calcium). Examples : "When Michael cut his finger, thrombin activated the conversion of fibrinogen to fibrin, starting the process that formed a blood clot and stopped the bleeding. " 当迈克尔割伤手指时,凝血酶激活了纤维蛋白原向纤维蛋白的转化,从而启动了形成血凝块并止血的过程。 medicine physiology biochemistry biology anatomy 与AI对话词汇游戏阅读练习