/ Dictionary / Index R Roman Catholic Church: Meaning and Definition of Find definitions for: Ro'man Cath'olic Church' Pronunciation: [key] the Christian church of which the pope, or bishop of Rome, is the supreme head. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Roman Catholic Roman Catholicism Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language