chronological age

noun

: the age of a person as measured from birth to a given date

His chronological age is five, but his mental age is three—he thinks and behaves like a three-year-old.

Examples of chronological age in a Sentence

Recent Examples on the Web

One recurring observation has been that many people become overly focused on their chronological age rather than on the opportunities that still lie ahead of them. — Ricardo Bellino, Forbes.com, 29 June 2026

Whoop tracks long-term metrics like physiological age (which may differ from your chronological age) and your pace of aging. — Andrew Gebhart, PC Magazine, 16 June 2026

Measured across multiple DNA methylation clocks, her biological age came in at an average of 17 to 23 years younger than her chronological age. — Allison Palmer, Fort Worth Star-Telegram, 15 June 2026

An October 2025 study in the British Journal of Dermatology found women aged 40 to 50 who looked younger than their chronological age shared a more resilient skin microbiome. — Allison Palmer updated June 13, Miami Herald, 13 June 2026

Rhymes for chronological age

• alienage
• assuage
• backstage
• bocage
• downstage
• engage
• enrage
• leafage
• messuage
• offstage
• onstage
• outrage

Medical Definition

chronological age

noun

chro·​no·​log·​i·​cal age ˌkrän-ᵊl-ˌäj-i-kəl-, ˌkrōn- 

: the age of a person as measured from birth to a given date compare achievement age