circadian
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.
The pineal gland produces melatonin, a hormone that helps control the circadian rhythm.
From Science Daily ● Jul. 26, 2026
Instead, the group representing sleep doctors favors permanent standard time, saying it aligns best with a human’s circadian rhythm, meaning your body’s natural clock.
From MarketWatch ● Jul. 15, 2026
Stanford professor Jamie Zeitzer, a physiologist who studies circadian cycles and how humans respond to light, supports ending the twice-a-year time changes.
From Los Angeles Times ● Jul. 14, 2026
Light sets our circadian rhythm, or 24-hour body clock, which tells us when to wake up.
From BBC ● Jul. 6, 2026
Not only was this arrangement bad for the astronaut’s circadian rhythm, but the astronaut who was on duty made enough noise as he went about his work to keep his partner awake.
From "Flying to the Moon: An Astronaut's Story" by Michael Collins
![]()
Vocabulary lists containing circadian
November Words
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
This Week in Words: Current Events Vocab for March 27–April 2, 2021
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
This Week in Words: Current Events Vocab for November 10–November 16, 2024
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!