Also found in: Dictionary, Thesaurus, Financial, Encyclopedia.
[British-born Canadian, 1947–1993]
He was the first person identified as having Christmas disease (hemophilia A).
Christmas diseaseSee: hemophilia B.
Christmas factorAbbreviation: CF
An obsolete term for plasma thromboplastin component.
Christmas,Stephen, patient with the first case of this disease studied in detail.
Christmas disease - a clotting disorder caused by hereditary deficiency of factor IX. Synonym(s): hemophilia B
Christmas factor - Synonym(s): factor IX coagulation factor