THROMBOPLASTINS
Scrabble letter values: T1H4R1O1M3B3O1P3L1A1S1T1I1N1S1 = 24
Definition
THROMBOPLASTINS is the plural of THROMBOPLASTIN.
noun THROMBOPLASTIN: an enzyme liberated from blood platelets that converts prothrombin into thrombin as blood starts to clot.
Synonyms of THROMBOPLASTIN: thrombokinase, factor_III