noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A protease that converts prothrombin to thrombin during the clotting of blood.
2. 2
   an enzyme liberated from blood platelets that converts prothrombin into thrombin as blood starts to clot wordnet

Synonyms

All synonyms

cytozymefactor iiithrombokinase

Etymology

From thrombo- + plastin.

Related phrases

activated partial thromboplastin timepartial thromboplastin timetissue thromboplastin inhibition time

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.