
Circadian
Not Just Night
The word 'circadian' goes beyond night-related patterns and includes all biological cycles repeated every 24 hours.

Plants have circadian rhythms that dictate when their flowers open.
Scientific Context
'Circadian' is mainly used in scientific contexts to discuss biology, physiology, and behavior.

Researchers study circadian rhythms to understand jet lag.
Daily Cycles
'Circadian' often precedes 'rhythm' to specify the daily cycles of biological activities.

Doctors recommend sleeping in sync with your natural circadian rhythm.
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DayDiurnalEverydayHourPeriodicRegularRhythmic
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