/ Dictionary / Index R rubefaction: Meaning and Definition of Find definitions for: ru•be•fac•tion Pronunciation: (r"bu-fak'shun), [key] — n. the act or process of making red, esp. with a rubefacient. redness of the skin caused by a rubefacient. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rubefacient Rube Goldberg Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language