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from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A plasma protein that is converted into thrombin during blood clotting.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A glycoprotein, produced in the liver, that is converted into thrombin during bleeding and subsequent clotting.

from The Century Dictionary and Cyclopedia

  • n. The proenzym or inactive form of thrombin (the fibrin ferment, in the sense of A. Schmidt).

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a protein in blood plasma that is the inactive precursor of thrombin


Sorry, no etymologies found.


  • Vitamin K – It is essential for the production of prothrombin, which is responsible for the clotting of blood.

    Functions of Vitamins and Minerals

  • A test called prothrombin time PT may be used to determine whether or not your liver is producing these blood-clotting factors adequately.


  • Clotting studies, such as prothrombin time (PT) and partial thromboplastin time (PTT): These tests measure the time it takes for blood to clot.

    Liver function and donor compatibility blood tests

  • VIBATIV does not interfere with coagulation, but does interfere with certain tests used to monitor coagulation such as prothrombin time, international normalized ratio, activated partial thromboplastin time, activated clotting time, and coagulation based factor Xa tests.

    Marketwire - Breaking News Releases

  • Elevated levels of direct or conjugated bilirubin often indicate an obstruction of bile flow or a defect in the processing of bile by the liver. albumin, total protein, and globulin - Below-normal levels of proteins made by the liver are associated with many chronic liver disorders. clotting studies, such as prothrombin time (PT) and partial thromboplastin time (PTT) - Tests that measure the time it takes for blood to clot may be used to diagnose biliary atresia.

    Diagnosing Biliary Atresia

  • So even when there is some prothrombin, it cannot be used for coagulation.

    Modern Science in the Bible

  • Through the lack of vitamin K, the prothrombin present cannot work properly.

    Modern Science in the Bible

  • Moreover, the liver begins to produce new prothrombin.

    Modern Science in the Bible

  • But already four thousand years before modern science made this discovery, God, the Creator of prothrombin and vitamin K, had instituted circumcision and stated on which day it should best take place see Genesis 17:12.

    Modern Science in the Bible

  • After a few days, the bacteria start to proliferate and sufficient vitamin K is produced, which means that the prothrombin present can begin to work.

    Modern Science in the Bible


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