ALL meanings of prothrombin
pro·throm·bin
P p - noun prothrombin a plasma protein involved in blood coagulation that on activation by factors in the plasma is converted to thrombin. 1
- noun prothrombin a zymogen found in blood that gives rise to thrombin on activation 0
- noun prothrombin a factor in the blood plasma that combines with calcium to form thrombin during blood clotting: it is a precursor of thrombin and is synthesized by the liver in the presence of vitamin K 0