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The number of years a person has lived, used especially in psychometrics as a standard against which certain variables, such as behavior and intelligence, are measured.
the age of an individual expressed as time that has elapsed since birth. The age of an infant is expressed in hours, days, or months; the age of children and adults is expressed in years.
chronological ageAbbreviation: CA
Age as determined by years since birth.
See also: age