/ Thesaurus / C Synonyms of christmas factor Find synonyms for: Noun1. Christmas factor, factor IX, coagulation factor, clotting factorusage: coagulation factor whose absence is associated with hemophilia BWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: devout Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language