/ Dictionary / Index M major seminary: Meaning and Definition of Find definitions for: ma'jor sem'inary Pronunciation: [key] a Roman Catholic theological college devoted to training for the priesthood and usually offering a six-year program emphasizing philosophy and theology. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. major scale major suit Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language