hemophilia B

noun

Definition of hemophilia B

: a mild to severe hemophilia that is caused by a deficiency of factor IX called also Christmas disease; compare hemophilia B

Recent Examples of hemophilia b from the Web

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First Known Use of hemophilia b

1954

in the meaning defined above

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Medical Dictionary

hemophilia B

noun

medical Definition of hemophilia B

: a mild to severe hemophilia that is caused by a deficiency of factor IX in the blood
  • Hemophilia B occurs mostly in males.… The inadequate or inactive supply of clotting factor results in periodic internal bleeding.
  • —K. A. FackelmannScience News2 Oct. 1993
called also Christmas disease

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