/ Dictionary / Index C central heating: Meaning and Definition of Find definitions for: cen'tral heat'ing Pronunciation: [key] a system that supplies heat to an entire building from a single source through ducts or through pipes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. central-fire Centralia Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language