factor V
noun
-ˈfīv 
: 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
Example Sentences
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
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 Word History
First Known Use
1947, in the meaning defined above
Medical Definition
factor V
noun
-ˈfīv
: 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