/ Dictionary / Index M metallo-organic: Meaning and Definition of Find definitions for: me•tal•lo-or•gan•ic Pronunciation: (mu-tal"ō ôr-gan'ik), [key] — adj. Chem. organometallic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. metalloid metallophone Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language