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thromboplastin

thromboplastin

9.9
A substance released by blood platelets that helps blood to clot
  • noun
  • /ˌθrɒmboʊˈplæstɪn/
  • Specialized
translation icon : tromboplastina
  • The doctor explained that thromboplastin is essential for converting prothrombin into thrombin during blood clotting.

Examples

  • The release of thromboplastin initiates an important step in the coagulation cascade.

  • The body releases thromboplastin during the clotting process.

  • A deficiency in thromboplastin can lead to disorders involving excessive bleeding.

  • The laboratory used thromboplastin to measure the patient's blood clotting time.

  • In a healthy individual, thromboplastin plays a crucial role in hemostasis.

  • In blood tests, thromboplastin is often measured to evaluate the clotting ability of a patient's blood.

  • During an injury, the body releases thromboplastin to start the clotting process and prevent excessive bleeding.

Synonyms

thrombokinase
vsthromboplastin
  • Specialized
9.9

A substance from tiny blood cells that helps blood form a clot

helps that conversion rather than fully catalyzing it
factor III
vsthromboplastin
  • Specialized
6.5

A protein released by blood platelets that starts blood clotting by making thrombin

helps the same process later or more gradually rather than starting it
prothrombinase
vsthromboplastin
  • Specialized
9.9

A group of proteins that helps blood form clots by changing prothrombin into thrombin

helps conversion as a platelet enzyme rather than forming a multi component complex
prothrombin accelerator
vsthromboplastin
  • Specialized
7.5

A substance that helps blood clot by turning a blood protein into a clotting chemical

helps conversion through enzyme activity rather than being any general substance

Compounds

A protein in blood that helps it to clot and whose lack causes heavy bleeding

Surface Forms

Morphology

thromboplastin = thrombus (opaque) = thrombo + plasto + in

The term is built from technical combining forms ('thrombo-' and 'plasto-') plus the protein suffix '-in', which are not productive or familiar to typical learners, so the meaning is not directly guessable.

Etymology

The word thromboplastin comes from the Greek parts thrombo- meaning 'clot' and -plastin meaning 'to form' (the same root you see in plastic, which is about shaping). So it is named for its job: a substance that helps blood 'form' a 'clot'.