internal clock

noun

: 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.

: a clock or timing device that is inside a computer

Example Sentences

Recent Examples on the Web By this point, Mitchell's teammate Kam Jones - also just a sophomore - must have had the internal clock running and alarms sounding because the guard wasted no time in pushing the ball up court. —

Lori Nickel, Journal Sentinel, 16 Feb. 2023

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

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“Internal clock.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/internal%20clock. Accessed 25 Mar. 2023.

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