internal clock

noun

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

Examples of internal clock in a Sentence

Recent Examples on the Web

Nearly one-quarter of adults with depression in a large study had symptoms linked to the body’s internal clock, such as being a night owl and waking up very tired. — Tom Gavin, EverydayHealth.com, 21 Oct. 2026

That finding is now being read against a parallel body of research on circadian rhythm, the 24-hour internal clock that regulates eating, sleeping and other physiological processes. — Hanna Wickes, Kansas City Star, 15 Oct. 2026

Yet much of the conventional advice about jet lag doesn’t address the key mechanism that helps your internal clock adjust. — Jd Shadel, Condé Nast Traveler, 22 Sep. 2026

The strategy is based on the idea that eating in alignment with your internal clock helps synchronize your body, leading to benefits. — Maggie Donahue, HEALTH, 1 Sep. 2026

Rhymes for internal clock

• electroshock
• aftershock
• antiknock
• arawak
• hollyhock
• interlock
• manioc
• shuttlecock
• tomahawk
• weathercock
• alcock
• beanstalk