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diurnal

diurnal

1 7.4
Active or awake during the day rather than at night
  • adjective
  • /daɪˈɜrnəl/
translation icon : diurno
  • We take for granted that we can only observe for a short period each day since we are born creatures of a diurnal world.
  • diurnal changes

And for us diurnal species, it's time to think about sleep.

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Examples

  • The family includes some non-luminescent (and often diurnal) species that rely on pheromones to locate mates, as well as some species that merely glow rather than flash.

    Academic text (2003)
  • And also for diurnal animals which are hunter gatherers, the only time actually they have to hunt is twilight time.

  • And for us diurnal species, it's time to think about sleep.

  • Some are nocturnal, others diurnal.

    Academic text (2006)
  • And the incident is significant in another way: the vast majority of species known to mob predators are diurnal, not nocturnal.

    Academic text (2010)
  • We also removed all nocturnal locations from the data set because sage-grouse are active during diurnal periods and inactive at night.

    Academic text (2016)
  • In general, tree hyraxes live in trees and are nocturnal, while rock hyraxes live among boulders and are mainly diurnal.

    Academic text (2003)
  • Notice how rhythms of change—hourly, diurnal, nocturnal, seasonal—affect the place.

    Academic text (2009)
  • Every morning, Dazzle's dad woke with the dawn, lapped dirty water from a blocked drain, and set off for his diurnal scrounge through the neighborhood alleyways.

    Fiction book (1999)
  • The river otter is a mostly diurnal creature, often seen playing in the daylight.

Antonyms

27 4.7

Active at night rather than during the day

Compounds

diurnal variation
  • Specialized
1 6.8

Regular changes that happen each day

diurnal parallax
  • Specialized
9.9

A small shift in a star's or planet's position when seen from different places on Earth because Earth turns

How Diurnal

diurnal
1 7.4
crepuscular
  • Specialized
9.1
nocturnal
27 4.7

Surface Forms

diurnal positive

Etymology

Diurnal comes from the Latin diurnus, from dies meaning 'day', so it describes animals or actions that are active in daylight rather than at night.