internal clock

noun

Definition of internal clock

1 : a system in the body that controls when a person needs to sleep, eat, etc. The long trip upset my internal clock and I had a hard time getting to sleep.
2 : a clock or timing device that is inside a computer
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Cite this Entry

“Internal clock.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/internal%20clock. Accessed 19 Oct. 2021.

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