Medical Dictionary

factor VIII

noun \-ˈāt\

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

Browse

How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears