/ Dictionary / Index V Vatican Council: Meaning and Definition of Find definitions for: Vat'ican Coun'cil Pronunciation: [key] the ecumenical council, convoked in Rome, 1869–70, by Pope Pius IX, that declared the dogma of papal infallibility. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Vatican City Vaticanism Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language