/ Dictionary / Index M manganese spar: Meaning and Definition of Find definitions for: man'ganese spar' Pronunciation: [key] rhodonite or rhodochrosite. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. manganese bronze manganese steel Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language