/ Dictionary / Index M monometallic: Meaning and Definition of Find definitions for: mon•o•me•tal•lic Pronunciation: (mon"ō-mu-tal'ik), [key] — adj. of or using one metal. pertaining to monometallism. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: monometallic (Thesaurus) monomerous monometallism 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