Christmas disease


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Christmas disease

[′kris·məs di‚zēz]
(medicine)
A hereditary, sex-linked, hemophilia-like disease involving failure of the clotting mechanism due to a deficiency of Christmas factor. Also known as Factor IX deficiency.
References in periodicals archive ?
There's good news, too, about another form of haemophilia, called Christmas disease - in which the missing substance is called Factor 9.