/ Dictionary / Index M moron: Meaning and Definition of Find definitions for: mo•ron Pronunciation: (môr'on, mōr'-), [key] — n. a person who is notably stupid or lacking in good judgment. a person of borderline intelligence in a former classification of mental retardation, having an intelligence quotient of 50 to 69. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: moron (Thesaurus) Morogoro Moroni Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language