/ Dictionary / Index M Mephistopheles: Meaning and Definition of Find definitions for: Meph•i•stoph•e•les Pronunciation: (mef"u-stof'u-lēz") [key] — n. one of the seven chief devils and the tempter of Faust. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mephistopheles (Thesaurus) Mephibosheth mephitic Related Content Daily Word Quiz: abdicate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language