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 ?
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.
Although initial publication of the new book was pushed for release before Christmas, Stephens said there are additional marketing plans in 2007.