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 ?
After Christmas, Stephen learned that there were still more kids on the street.
Against Nottingham Forest just after Christmas, Stephen and Andy Reid were the two best players on the park.
Every week before Christmas, Stephen will choose a selection of the best before we announce the overall winner who will receive pounds 250 to spend on next year's decorations, courtesy of Rapid.