antihemophilicfactor

an·ti·he·mo·phil·ic factor (ăn'tē-hē'mə-fĭlʹĭk, ăn'tī-) n. Abbr. AHF

A protein substance in blood plasma that participates in and is essential for the blood-clotting process. Most cases of hemophilia are caused by a deficiency of this factor. Also called antihemophilic globulin, factor VIII.

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