/ Dictionary / Index E ecumenical council: Meaning and Definition of Find definitions for: ec'umen'ical coun'cil Pronunciation: [key] a solemn assembly in the Roman Catholic Church, convoked and presided over by the pope and composed of cardinals, bishops, and certain other prelates whose decrees, when confirmed by the pope, become binding. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ecumenical ecumenicalism Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language