circadian

adjective/sɜrˈkeɪdiən/

Frequency rank: #13,423 most common English word

Meaning

relating to biological processes that recur naturally on a roughly 24-hour cycle.

Illustration for the English word “circadian”

Example sentence

Our bodies follow circadian rhythms that regulate sleep and wakefulness over a 24-hour cycle.

Synonyms & related words

Practice this word in the quiz

More words in ranks 13,401–13,500