prothrombin

noun
pro·​throm·​bin | \(ˌ)prō-ˈthräm-bən \

Definition of prothrombin 

: a plasma protein produced in the liver in the presence of vitamin K and converted into thrombin in the clotting of blood

First Known Use of prothrombin

1898, in the meaning defined above

History and Etymology for prothrombin

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The first known use of prothrombin was in 1898

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prothrombin

noun
pro·​throm·​bin | \(ˈ)prō-ˈthräm-bən \

Medical Definition of prothrombin 

: a plasma protein produced in the liver in the presence of vitamin K and converted into thrombin by the action of various activators (as thromboplastin) in the clotting of blood

Other Words from prothrombin

prothrombic \-​bik \ adjective

More from Merriam-Webster on prothrombin

Britannica.com: Encyclopedia article about prothrombin

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