/ Dictionary / Index M mediatrix: Meaning and Definition of Find definitions for: me•di•a•trix Pronunciation: (mē"dē-ā'triks), [key] — pl. -a•tri•ces -a•trix•es. a woman who mediates, esp. between parties at variance. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mediatrix (Thesaurus) mediatory Medibank Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language