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
My internal clock wherever I am just knows it’s 4 p.m. and I get a little sad.
From Los Angeles Times • Jul. 25, 2025
When it is bright, our internal clock feels we should be awake.
From BBC • Apr. 16, 2025
You really have to be thoughtful of your act structures and that internal clock.
From Salon • Aug. 12, 2024
No. His internal clock doesn’t work that way.
From "Flying to the Moon: An Astronaut's Story" by Michael Collins
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.
