/ Dictionary / Index M mutual insurance: Meaning and Definition of Find definitions for: mu'tual insur'ance Pronunciation: [key] insurance in which those insured become members of a company who reciprocally engage, by payment of certain amounts into a common fund, to indemnify one another against loss. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mutual induction mutualism 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