/ Dictionary / Index C calefaction: Meaning and Definition of Find definitions for: cal•e•fac•tion Pronunciation: (kal"u-fak'shun), [key] — n. the act of heating. a heated state. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: calefaction (Thesaurus) calefacient calefactory Related Content Daily Word Quiz: apogee Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language