See Also: Thrombin(medicine)
thrombin(dictionary)
human thrombin(medicine)
receptors, thrombin(medicine)
thrombin time(medicine)

thrombin (iou)



thrombin noun. L19.
[from Greek thrombos THROMBUS + -IN1.]
Biochemistry & Physiology. A plasma protein (normally present as inactive prothrombin) which acts as an enzyme to convert fibrinogen to fibrin and so cause the clotting of blood.