Circadian
/səˈrkeɪdiən/
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Definition
(adj) Of, relating to, or showing rhythmic behaviour with a period of approximately 24 hours; especially of a biological process.
Sentence Examples
Circadian cycles can be easily appreciated in plants.
Starch degradation is linked to a circadian clock.
CEFR Practice Quiz
Your ____ rhythm is basically your internal clock that regulates city.