1) Clotting factor 2) Coagulation factor 3) Factor ii 
(pro + Gr. thrombos cloth -in chemical suffix) Factor II.
glycoprotein (carbohydrate-protein compound) occurring in blood plasma and an essential component of the blood-clotting mechanism. Prothrombin is ... [3 related articles]
Clotting Factor II. ... Origin: Gr. Thrombos = cloth in ... (18 Nov 1997) ... 
(pro-throm´bin) factor II.
a protein synthesized by the liver that is necessary for proper blood clotting.
Inactive precursor of thrombin, found in blood plasma.
A constituent of plasma that clots the blood.
Type: Term Pronunciation: prō-throm′bin Definitions: 1. A glycoprotein, molecular weight approximately 72,500, formed and stored in the parenchymal cells of the liver and present in blood in a concentration of approximately 20 mg/100 mL. In the presence of thromboplastin and calcium ion, prothrombin is converted to thrombin, which in tur...
Prothrombin: A coagulation (clotting) factor that is needed for the normal clotting of blood. A cascade of biochemical events leads to the formation of the final clot. In this cascade, prothrombin is a precursor to thrombin. Prothrombin is also known as thrombinogen and, in medical jargon, as pro. See also: Prothrombin mutation G20210A; and Prothro...
Prothrombin is a substance in the plasma from which thrombin is derived during blood clotting.
[n] - a protein in blood plasma that is the inactive precursor of thrombin
factor II noun a protein in blood plasma that is the inactive precursor of thrombin
a plasma protein involved in blood coagulation that on activation by factors in the plasma is converted to thrombin. Also called