/ Dictionary / Index M marmoreal: Meaning and Definition of Find definitions for: mar•mo•re•al Pronunciation: (mär-môr'ē-ul, -mōr'-), [key] — adj. of or like marble: skin of marmoreal smoothness. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: marmoreal (Thesaurus) Marmolada marmoset Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language