factor V

noun

: a clotting factor produced primarily in the liver that circulates in an inactive form in blood plasma and in its activated form combines with factor X on the surface of platelets to accelerate the conversion of prothrombin to thrombin

Examples of factor V in a Sentence

Recent Examples on the Web The factor V Leiden mutation puts people at higher risk for developing blood clots. Dr. Keith Roach, oregonlive, 8 Feb. 2022 In this case, the hematologist will usually look for underlying causes, such as protein C or S deficiency or the factor V Leiden mutation. Dr. Keith Roach, oregonlive, 10 Nov. 2021 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

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'factor V.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1947, in the meaning defined above

Time Traveler
The first known use of factor V was in 1947

Dictionary Entries Near factor V

Cite this Entry

“Factor V.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/factor%20V. Accessed 5 Nov. 2024.

Medical Definition

factor V

noun
: a globulin clotting factor produced primarily in the liver that circulates in an inactive form in blood plasma and in its activated form combines with factor X on the surface of platelets to accelerate the conversion of prothrombin to thrombin

called also accelerator globulin, labile factor, proaccelerin

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