Christmas disease

noun, Pathology
1.
a hereditary disease characterized by an inability of the blood to clot because of a deficiency of a coagulation factor.
Origin
1952; after S. Christmas, the first sufferer from the disease to be examined in detail
British Dictionary definitions for Christmas disease

Christmas disease

noun
1.
a relatively mild type of haemophilia, caused by lack of a protein (Christmas factor) implicated in the process of blood clotting
Word Origin
C20: named after S. Christmas, the first patient suffering from the disease who was examined in detail
Christmas disease in Medicine

Christmas disease Christ·mas disease (krĭs'məs)
n.
See hemophilia B.