factor VIII

noun

: 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 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

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'factor VIII.' 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

1954, in the meaning defined above

Time Traveler
The first known use of factor VIII was in 1954

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 Feb. 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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