factor VIII

noun
\ -ˈāt How to pronounce factor VIII (audio) \

Definition of factor VIII

: 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

First Known Use of factor VIII

1954, in the meaning defined above

Keep scrolling for more

Learn More about factor VIII

Time Traveler for factor VIII

Time Traveler

The first known use of factor VIII was in 1954

See more words from the same year

Statistics for factor VIII

Cite this Entry

“Factor VIII.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/factor%20VIII. Accessed 10 Jul. 2020.

Keep scrolling for more

More Definitions for factor VIII

factor VIII

noun
\ -ˈāt How to pronounce factor VIII (audio) \

Medical Definition of factor VIII

: 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

Comments on factor VIII

What made you want to look up factor VIII? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

Words for Summer: A Quiz

  • a closeup of a sunflower
  • Which of the following words means “of or relating to summer”?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!