Circadian Rhythm Definition

sər-kādē-ən
noun
A daily rhythmic activity cycle, based on 24-hour intervals, that is exhibited by many organisms.
American Heritage Medicine

Other Word Forms of Circadian Rhythm

Noun

Singular:
circadian rhythm
Plural:
circadian-rhythms

Origin of Circadian Rhythm

  • From the Latin circa, meaning "around" and dies, "day", meaning literally, "around a day".

    From Wiktionary

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