Noun: hemophilia B
Usage: N. Amer (elsewhere: haemophilia B)
Usage: N. Amer (elsewhere: haemophilia B)
- A clotting disorder similar to hemophilia A but caused by a congenital deficiency of factor IX
- haemophilia B [Brit, Cdn], Christmas disease
Type of: bleeder's disease, haemophilia [Brit, Cdn], hemophilia [N. Amer]
Encyclopedia: Hemophilia B