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.
“Light is the way the internal clock knows what time it is.”
From The Wall Street Journal ● Oct. 5, 2026
In collaboration with Prof. Achim Kramer from the Charité -- Universitätsmedizin Berlin, the team also examined changes in the body's internal clock using isolated blood cells.
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
Additionally, disruptions to the body's internal clock can affect astronaut's sleeping and eating cycles.
From Salon ● Mar. 15, 2025
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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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
