body clock


Definition of body clock

: 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 That body clock is also called the circadian system. Sara Harrison, Wired, 21 Sep. 2021 So far, though, her body clock is winning the battle with those crazy early times on the alarm clock., 31 July 2021 My body clock had nothing in common with those of normal people. Tom Scharpling, Vulture, 12 July 2021 Data from the study showed there can be serious consequences to a skewed internal body clock. Gabriela Miranda, USA TODAY, 9 June 2021 Try to do so outside -- the sunlight can help restore your body clock. Sandee Lamotte, CNN, 21 Apr. 2021 That's because those changes mess with our circadian rhythm, a 24-hour body clock responsible for regulated sleep, appetite and mood. Sandee Lamotte, CNN, 6 Nov. 2020 The late and staggered starts by conferences have thrown off college football’s body clock. Ralph D. Russo,, 6 Nov. 2020 The circadian rhythm is an internal body clock that runs in approximately 24-hour cycles, says Joey Chan, associate professor of psychiatry at the Chinese University of Hong Kong. Rebecca Cairns, CNN, 19 Oct. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'body clock.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of body clock

1916, in the meaning defined above

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Time Traveler for body clock

Time Traveler

The first known use of body clock was in 1916

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Dictionary Entries Near body clock

body checker

body clock

body clothes

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Statistics for body clock

Last Updated

25 Sep 2021

Cite this Entry

“Body clock.” Dictionary, Merriam-Webster, Accessed 28 Sep. 2021.

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More Definitions for body clock

body clock


English Language Learners Definition of body clock

: a system in the body that controls when you need to sleep, eat, etc.

body clock

\ -ˈkläk How to pronounce body clock (audio) \

Medical Definition of body clock

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


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