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mental deficiency

noun

Definition of mental deficiency

: a deficiency in cognitive functioning specifically : intellectual disability

Examples of mental deficiency in a Sentence

Recent Examples on the Web

 Then English gave his closing arguments, saying that McCoy was guilty, but only of second-degree murder, because of mental deficiencies. — Jon Schuppe, NBC News, "Supreme Court to hear case of lawyer who defied client in murder trial," 12 Jan. 2018

First Known Use of mental deficiency

1820, in the meaning defined above

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More Definitions for mental deficiency

mental deficiency

noun

Medical Definition of mental deficiency

: a deficiency in cognitive functioning specifically : intellectual disability

mental deficiency

noun

Legal Definition of mental deficiency

: failure in intellectual development that is marked by low intelligence or mental retardation and that may result in an inability to function competently in society

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