mental age
noun Psychology.
the level of native mental ability or capacity of an individual, usually as determined by an intelligence test, in relation to the chronological age of the average individual at this level: a ten-year-old child with the mental age of a twelve-year-old; a mental age of twelve.
Nearby words
Compare achievement age.
Origin of mental age
First recorded in 1910–15
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for mental age
mental age
noun
psychol the mental ability of a child, expressed in years and based on a comparison of his test performance with the performance of children with a range of chronological agesSee also intelligence quotient
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Medicine definitions for mental age
mental age
n.
A measure of mental development as determined by intelligence tests, generally restricted to children and expressed as the age at which that level is typically attained.
The American Heritage® Stedman's Medical Dictionary
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