Pronunciation: /daɪˈɜːr.nəl/
noun a diurnal plant or animal
A1 I learned about diurnals in my science class.
A2 Diurnals are animals that are active during the day.
B1 The diurnal cycle of plants is influenced by sunlight.
B2 Birds of prey are examples of diurnals that hunt during the day.
C1 The diurnal rhythm of human beings is controlled by circadian rhythms.
C2 Researchers study the diurnal behavior of animals to understand their ecological roles.
adjective relating to or occurring in the daytime; daily
A1 My diurnal routine includes waking up early, eating breakfast, and going to work.
A2 Some animals, such as birds, are diurnal and are active during the day.
B1 The diurnal cycle of light and darkness helps regulate our sleep patterns.
B2 Diurnal animals have adapted to be more active during the daytime to avoid predators.
C1 The diurnal variation in temperature can have a significant impact on ecosystems.
C2 Studying the diurnal behavior of plants can provide insights into their growth and development.
formal Diurnal animals are active during the day and sleep at night.
informal I prefer diurnal creatures because I like being awake during the day.
slang Those diurnal birds are always up early making noise.
figurative His diurnal routine keeps him on track and productive during the day.
diurnaled
diurnals
more diurnal
most diurnal
diurnals
will be diurnal
have been diurnal
are being diurnal
diurnal
diurnal
to be diurnal
diurnaling
diurnaled