/ Dictionary / Index A altarpiece: Meaning and Definition of Find definitions for: al•tar•piece Pronunciation: (ôl'tur-pēs"), [key] — n. a painted or carved screen behind or above the altar or communion table in Christian churches; reredos. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: altarpiece (Thesaurus) altar of repose altar rail Related Content Daily Word Quiz: stellar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language