clotting factor

noun

1. any one of a group of substances, including factor VIII, the presence of which in the blood is essential for blood clotting to occur Also calledcoagulation factor

clotting factor

/ klŏt′ĭng /

1. Any of various components of plasma involved in the coagulation of blood, including fibrinogen, prothrombin, and calcium ions. Hereditary deficiency of clotting factors can cause coagulation disorders such as hemophilia .