Diurnal GRE Vocabulary Flashcard

Diurnal GRE Vocabulary Flashcard

/ˌdaɪˈɜː.nəl/ (adj)

Definition

happening or being active during the day, daily, daytime, daylight – circadian, quotidian

Example

Diurnality is a form of plant or animal behavior characterized by activity during daytime, with a period of sleeping or other inactivity at night. The common adjective used for daytime activity is “diurnal”. The timing of activity by an animal depends on a variety of environmental factors such as the temperature, the ability to gather food by sight, the risk of predation, and the time of year. Diurnality is a cycle of activity within a 24-hour period; cyclic activities called circadian rhythms are endogenous cycles not dependent on external cues or environmental factors except for a zeitgeber. Animals active during twilight are crepuscular, those active during the night are nocturnal, and animals active at sporadic times during both night and day are cathemeral.

Source: https://en.wikipedia.org/

Antonyms

nocturnal, nightly

Parts of speech

Adverb: diurnally

Noun: diurnality

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