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circadian

Syllabification: (cir·ca·di·an)
Pronunciation: /sərˈkādēən/
Definition of circadian

adjective

Physiology
  • (of biological processes) recurring naturally on a twenty-four-hour cycle, even in the absence of light fluctuations:a circadian rhythm

Origin:

1950s: formed irregularly from Latin circa 'around' + dies 'day'

circadian in other Oxford dictionaries

Definition of circadian in the British & World English dictionary

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