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A type of hemophilia that is caused by a deficiency of factor IX.
[After Stephen Christmas, 20th-century British boy who was first diagnosed with it.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Pathology) a relatively mild type of haemophilia, caused by lack of a protein (Christmas factor) implicated in the process of blood clotting
[C20: named after S. Christmas, the first patient suffering from the disease who was examined in detail]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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|Noun||1.||Christmas disease - a clotting disorder similar to hemophilia A but caused by a congenital deficiency of factor IX|
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.