IPA: //ˈθrɒmbɪn//
KK: /θrɑmˈbɪn/
A type of enzyme in the blood that helps with the process of clotting by changing a protein called fibrinogen into fibrin.
Thrombin plays a crucial role in the blood clotting process, preventing excessive bleeding.
Thrombin is derived from the Greek word "thrombos" (meaning clot) and the suffix "-in" (used in biochemistry to denote proteins). Thrombin is a protein involved in the clotting process, thus relating directly to its root meaning of clot.
Think of 'thrombos' which means clot, and remember that thrombin is a protein that helps in the clotting process.