Prothrombin
noun, Biochemistry.
1.
a plasma protein involved in blood coagulation that on activation by factors in the plasma is converted to thrombin.
noun
1.
(biochem) a zymogen found in blood that gives rise to thrombin on activation See also phylloquinone
prothrombin pro·throm·bin (prō-thrŏm’bĭn)
n.
A glycoprotein formed by and stored in the liver and present in the blood plasma that is converted to thrombin in the presence of thromboplastin and calcium ion during blood clotting. Also called factor II.
prothrombin
(prō-thrŏm’bĭn)
A glycoprotein that is converted to thrombin during blood clotting. Prothrombin is formed by and stored in the liver.
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