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obsolete term for a person with the highest grade of mental retardation, equivalent to the modern classification “mild mental retardation.”
mor·on(mōr'on), This outmoded and imprecise term is best avoided in medical speech and writing because of its pejorative lay connotations.
An obsolete term for a subclass of mental retardation or a person so classified therein.
[G. mōros, stupid]
A person with mild intellectual disability having a mental age of from 7 to 12 years and generally having communication and social skills enabling some degree of academic or vocational education. The term belongs to a classification system no longer in use and is now considered offensive.
mo′ron′ism, mo·ron′i·ty (mə-rŏn′ĭ-tē, mô-) n.
An obsolete term formerly used for an individual with mild mental retardation (IQ 50–69).
A derogatory term used indiscriminately for an obtuse person, regardless of that person’s tested IQ.