/ Dictionary / Index M Marinus I: Meaning and Definition of Find definitions for: Ma•ri•nus I Pronunciation: (mu-rī'nus), [key] dieda.d.884, pope 882–884. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Marini Marinus II Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language