chronological age

chronological age noun Psychology.

1. the number of years a person has lived, especially when used as a standard against which to measure behavior, intelligence, etc.

chronological age in Medicine chronological age [krŏn′ə-lŏj′ĭ-kəl] n.

1. 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.