thrombin

noun Biochemistry.

1. an enzyme of the blood plasma that catalyzes the conversion of fibrinogen to fibrin, the last step of the blood clotting process.

noun

1. biochem an enzyme that acts on fibrinogen in blood causing it to clot

n.

1. An enzyme in blood formed from prothrombin that facilitates blood clotting by reacting with fibrinogen to form fibrin.thrombase

1. An enzyme in blood that catalyzes the conversion of fibrinogen to fibrin and is essential to the coagulation of blood.