in the clotting of blood, also known as: Stuart factor, Stuart-Prower factor, prothrombase, and prothrombinase. Its active form, factor Xa (EC 188.8.131.52), is formed from factor X by limited proteolysis and assists in the conversion of prothrombin to thrombin. A deficiency of factor X will lead to impaired blood coagulation.
Search Stedman's Medical Dictionary
Examples: glitazone, GI cocktail, etc.