/ Dictionary / Index M Marciano: Meaning and Definition of Find definitions for: Mar•ci•a•no Pronunciation: (mär"sē-ä'nō, -an'ō), [key] (Rocco Francis Marchegiano), 1924–69, U.S. boxer: world heavyweight champion 1952–56. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: marciano (Thesaurus) Marcian Marcie Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language