/ Dictionary / Index M mephitic: Meaning and Definition of Find definitions for: me•phit•ic Pronunciation: (mu-fit'ik), [key] — adj. offensive to the smell. noxious; pestilential; poisonous. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mephitic (Thesaurus) Mephistopheles mephitis 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