internal clock
Americannoun
Etymology
Origin of internal clock
First recorded in 1955–60
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
A new study suggests that disruptions in the body's internal clock may be tied to a higher risk of dementia.
From Science Daily • Jan. 3, 2026
Prof Luscher said that - like the researchers suggest - it is "possible" that coffee drinking later in the day could disrupt out bodies internal clock at a time we should be resting.
From BBC • Jan. 8, 2025
You really have to be thoughtful of your act structures and that internal clock.
From Salon • Aug. 12, 2024
“There are gonna be some people that wake up at 3 in the morning, probably wide awake. Everybody’s internal clock is different. But we’re doing everything we can.”
From Los Angeles Times • Mar. 15, 2024
X-Ray always said that he’d sleep until noon every day once he was released, but his internal clock was permanently out of whack.
From "Small Steps" by Louis Sachar
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.