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1. A person who is considered foolish or stupid.
2. 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.
[From Greek mōron, neuter of mōros, stupid, foolish.]
mo′ron′ism, mo·ron′i·ty (mə-rŏn′ĭ-tē, mô-) n.
A city of eastern Argentina, an industrial suburb of Buenos Aires.