christmas disease christmas day • christmas eve · · · Info · Definitions · Synonyms · Characters · · christmas disease · · Text Common · · Latin · · Scripts 17 · · Length 4 · · Syllables Definitions · · · (noun) a clotting disorder similar to hemophilia A but caused by a congenital deficiency of factor IX. Synonyms: hemophilia B, haemophilia B, Christmas disease. · · Noun Definition 1 Synonyms · · · hemophilia b · · Synonym 1 haemophilia b · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 m latin small letter m U+006D r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074