/ Dictionary / Index M mineral spring: Meaning and Definition of Find definitions for: min'eral spring" Pronunciation: [key] a spring of water that contains a significant amount of dissolved minerals. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mineral spirits mineral tar Related Content Daily Word Quiz: abominable Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language