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diurnal
01
primarily active or occurring during the daytime
Example
Most birds are diurnal, chirping and foraging for food as soon as the sun rises.
Diurnal animals, such as squirrels and deer, are often seen during daylight hours, foraging and interacting in their natural habitats.
The biologist focused her research on diurnal species, observing their behaviors and interactions throughout the day.
02
having a cycle that happens on a daily basis
Example
The diurnal pattern of the flower's blooming happens every morning.
Humans have a diurnal rhythm that follows a daily sleep-wake cycle.
Many animals have diurnal behaviors, becoming active during the day.
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