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

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This means their biologic age is ahead of their chronological age. — Jaquelyn Jahn, The Conversation, 16 Oct. 2026 Keep in mind that all ages are based on chronological age, not corrected age. — Anna Halkidis, Parents, 2 Sep. 2026 This variant prompts the body to keep churning out Klotho at high levels, regardless of chronological age. — Mark Ellwood, Robb Report, 9 Aug. 2026 Epigenetic Age Clocks Epigenetic clocks analyze DNA methylation patterns to estimate biological age — how old your biology looks relative to your chronological age. — Jesse Pines, Forbes.com, 20 July 2026 See All Example Sentences for chronological age

Rhymes for chronological age

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chronological
chronological age
chronologist
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Cite this Entry

“Chronological age.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/chronological%20age. Accessed 20 Oct. 2026.

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Medical Definition

chronological age

noun
chro·​no·​log·​i·​cal age ˌkrän-ᵊl-ˌäj-i-kəl-, ˌkrōn- How to pronounce chronological age (audio)
: the age of a person as measured from birth to a given date compare achievement age
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