/ Dictionary / Index M mutuality: Meaning and Definition of Find definitions for: mu•tu•al•i•ty Pronunciation: (my"ch-al'i-tē), [key] — n. condition or quality of being mutual; reciprocity; mutual dependence. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mutuality (Thesaurus) mutualism mutualize 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