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Definition of Mental age
1. Noun. The level of intellectual development as measured by an intelligence test.
Generic synonyms: Age
Definition of Mental age
1. Noun. How old one appears to be based solely on mental ability and function. ¹
¹ Source: wiktionary.com
Medical Definition of Mental age
1. A measure, expressed in years and months, of a child's measured intelligence relative to age norms as determined by testing with the Stanford-Binet intelligence scale. (05 Mar 2000)