Dictionary

mental age

noun

: a measurement of a person's ability to think and understand that is expressed as the age at which an average person reaches the same level of ability

Full Definition of MENTAL AGE

:  a measure used in psychological testing that expresses an individual's mental attainment in terms of the number of years it takes an average child to reach the same level
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Examples of MENTAL AGE

  1. a 40-year-old man with the mental age of 10

First Known Use of MENTAL AGE

1910
Medical Dictionary

mental age

noun

Medical Definition of MENTAL AGE

:  a measure used in psychological testing that expresses an individual's mental attainment in terms of the number of years it takes an average child to reach the same level

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