Pronunciation: (môr'on, mōr'-), [key]
1. a person who is notably stupid or lacking in good judgment.
2. Psychol.a person of borderline intelligence in a former classification of mental retardation, having an intelligence quotient of 50 to 69. Cf. feeble-minded.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.