body clock

noun

: the internal mechanisms that schedule periodic bodily functions and activities
usually not used technically

Examples of body clock in a Sentence

It takes a while for my body clock to get adjusted when I fly from New York to London.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
High pupil performance is no excuse to continue harming students’ physical and mental health and safety — all of which improve when start times align with adolescent body clocks. Sun Sentinel Editorial Board, Sun Sentinel, 12 Feb. 2025 Social Jetlag tracks your body clock against your social schedule. PCMAG, 24 Jan. 2025 The schedule difficulties and potential body clock challenges could have actual impacts on the Pacers’ and Spurs’ seasons. Tony East, Forbes, 23 Jan. 2025 Dogs sleep patterns are ruled by their circadian rhythms (body clocks), and their energy levels are replenished after a good sleep. John Mac Ghlionn, Newsweek, 13 Jan. 2025 See All Example Sentences for body clock

Word History

First Known Use

1916, in the meaning defined above

Time Traveler
The first known use of body clock was in 1916

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Cite this Entry

“Body clock.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/body%20clock. Accessed 28 Feb. 2025.

Medical Definition

body clock

noun
: the internal mechanisms that schedule bodily functions and activities
not usually used technically
Last Updated: - Updated example sentences
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