/ Dictionary / Index C calefacient: Meaning and Definition of Find definitions for: cal•e•fa•cient Pronunciation: (kal"u-fā'shunt), [key] — n. a substance, as mustard, that produces a sensation of heat when applied to the body. —adj. heating; warming. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: calefacient (Thesaurus) calef. calefaction 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