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: a glycoprotein clotting factor of blood plasma that is essential for blood clotting and is absent or inactive in hemophilia A
called also antihemophilic factor
Examples of factor VIII in a Sentence
Recent Examples on the Web
The researchers have already shown that CAHS can preserve human blood clotting factor VIII, a biologic commonly used to treat hemophilia and cases of extreme bleeding on the battlefield.
—Cody Cottier, Discover Magazine, 10 July 2024
Most people who suffer from haemophilia lack a protein, factor VIII, that enables their blood to clot.
—The Week Uk, theweek, 10 Feb. 2024
All but one had received commercial factor VIII; 76 tested positive for HIV.
—The Week Uk, theweek, 10 Feb. 2024
Garrett Hayes, photographed in 2020, needs to injects himself with factor VIII three times a week.
—Jonathan Saltzman, BostonGlobe.com, 29 Jan. 2023
Without the injections, Hayes said, his body produces less than 1 percent of the normal amount of factor VIII.
—Jonathan Saltzman, BostonGlobe.com, 29 Jan. 2023
This meant that the immune system was able to learn that factor VIII was not harmful and remembered to tolerate it.
—Sathy Balu-Iyer, The Conversation, 29 Nov. 2021
No patients developed resistance to factor VIII during the study, and no hypersensitivity or anaphylaxis events were reported.
—Rebekah Tuchscherer, Science | AAAS, 9 Sep. 2020
Infection with hepatitis C was also common when patients relied on infusions of clotting factors from human plasma, before the availability of recombinant factor VIII and IX made their treatments safer.
—Elizabeth Cooney, STAT, 20 Aug. 2020
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Word History
First Known Use
1954, in the meaning defined above
Dictionary Entries Near factor VIII
Cite this Entry
“Factor VIII.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/factor%20VIII. Accessed 22 Nov. 2024.
Medical Definition
factor VIII
noun
: a glycoprotein clotting factor of blood plasma that is essential for blood clotting and is absent or inactive in hemophilia
called also antihemophilic factor, thromboplastinogen
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