/ Dictionary / Index M metalliferous: Meaning and Definition of Find definitions for: met•al•lif•er•ous Pronunciation: (met"l-if'ur-us), [key] — adj. containing or yielding metal. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. metallide metalline Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language