Definition of thromboplastin in English:


Syllabification: throm·bo·plas·tin
Pronunciation: /ˌTHrämbōˈplastən


  • An enzyme released from damaged cells, especially platelets, that converts prothrombin to thrombin during the early stages of blood coagulation.
    More example sentences
    • In the second stage, prothrombin is activated by thromboplastin to make thrombin.
    • Indicated tests include a complete blood cell count with platelet count, a peripheral blood smear, and prothrombin and activated partial thromboplastin times.
    • The atrial fibrillation group also had more hematologic tests done, including more prothrombin and partial thromboplastin times.

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