暦れき年ねん齢れい

noun

chronological age

Technical term used in medicine, psychology, and education to refer to age measured from date of birth, as opposed to developmental or mental age.

• 暦れき年ねん齢れいと精せい神しん年ねん齢れいには差さがある場ば合あいがある。

  There can be a gap between chronological age and mental age.