Dictionary

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

Origin of PROTHROMBIN

International Scientific Vocabulary
First Known Use: 1898

prothrombin

noun pro·throm·bin \(ˈ)prō-ˈthräm-bən\   (Medical Dictionary)

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
pro·throm·bic \-bik\ adjective

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