/ Dictionary / Index M Mithras: Meaning and Definition of Find definitions for: Mith•ras Pronunciation: (mith'ras), [key] — n. Persian Myth. the god of light and truth, later of the sun. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mithras (Thesaurus) Mithraism mithridate Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language