diurnality
definition
the characteristic of being active during the day and resting at night
example
Many species exhibit diurnality, adapting their behaviors to hunt for food during the daylight hours.
synonyms
daytime activitydiurnal behaviordaylight activity
word origin — The word diurnality is derived from the Latin 'diurnalis', meaning 'of the day', from 'diurnus', which means 'daily'.