单词	prothrombin
释义	prothrombin noun pro·​throm·​bin (ˌ)prō-ˈthräm-bən  : a plasma protein produced in the liver in the presence of vitamin K and converted into thrombin in the clotting of blood Example Sentences Recent Examples on the Web Among the 20 or so known genetic risk factors, the most common include the factor V Leiden mutation, prothrombin gene mutations and deficiencies in protein C, protein S and antithrombin. Dr. Keith Roach, oregonlive, 1 Nov. 2021 Word History Etymology International Scientific Vocabulary First Known Use 1898, in the meaning defined above Medical Definition prothrombin noun pro·​throm·​bin (ˈ)prō-ˈthräm-bən  : 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
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