achievement age
noun
achieve·ment age
ə-ˈchēv-mənt- 
: the level of an individual's educational achievement as measured by a standardized test and expressed as the age (as 8 years 6 months) for which the test score would be the average score
called also educational age
compare chronological ageCite this Entry
“Achievement age.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/achievement%20age. Accessed 3 Nov. 2025.
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