/ Dictionary / Index M mithridate: Meaning and Definition of Find definitions for: mith•ri•date Pronunciation: (mith'ri-dāt"), [key] — n. Old Pharm. a confection believed to contain an antidote to every poison. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Mithras Mithridates VI Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language