/ Dictionary / Index M marezzo: Meaning and Definition of Find definitions for: ma•rez•zo Pronunciation: (mu-ret'sō), [key] — n. an imitation marble composed of Keene's cement, fiber, and coloring matter. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Mare Vaporum Marfan syndrome Related Content Daily Word Quiz: exemplary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language