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Adjective: subnormal  ,súb'nor-mul
  1. (statistics) below normal or average
    "after the floods the harvests were subnormal"; "subnormal intelligence"
Noun: subnormal  ,súb'nor-mul
  1. A person of less than normal intelligence

Derived forms: subnormals

See also: abnormal, unnatural

Type of: simple [archaic], simpleton

Encyclopedia: Subnormal