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- Dictionarydiurnal/dʌɪˈəːnl/
adjective
- 1. of or during the day. Similar
- 2. daily; of each day: "diurnal rhythms" Similar
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being active or happening during the day rather than at night: The Ethiopian wolf is mostly diurnal, but becomes nocturnal in areas where it is persecuted. diurnal activity. formal. happening over a period of a day: the diurnal rotation of the earth. Compare. nocturnal. Fewer examples. the sunlit hours when diurnal birds are about.
1. a. biology : active chiefly in the daytime. diurnal animals. b. : of, relating to, or occurring in the daytime. the city's diurnal noises. c. botany : opening during the day and closing at night. diurnal flowers. 2. a. : recurring every day. diurnal tasks. b. : having a daily cycle. diurnal tides. diurnally. dī-ˈər-nᵊl-ē. adverb.
adjective. of or relating to a day or each day; daily. of or belonging to the daytime ( nocturnal ). Botany. showing a periodic alteration of condition with day and night, as certain flowers that open by day and close by night. active by day, as certain birds and insects ( nocturnal ).
adj. 1. happening during the day or daily. 2. (Botany) (of flowers) open during the day and closed at night. 3. (Zoology) (of animals) active during the day. Compare nocturnal. n. (Roman Catholic Church) a service book containing all the canonical hours except matins. [C15: from Late Latin diurnālis, from Latin diurnus, from diēs day]
The adjective diurnal can be used to describe anything that takes place in the daytime, but it is most often used in the field of biology to describe animals that are active during the day and then sleep at night.
of or pertaining to a day or each day; daily. 2. of or belonging to the daytime ( opposed to nocturnal) 3. Botany. showing a periodic alteration of condition with day and night, as certain flowers that open by day and close by night. 4. active by day, as certain birds and insects (opposed to nocturnal) noun.
Jun 2, 2024 · diurnal (comparative more diurnal, superlative most diurnal) Happening or occurring during daylight, or primarily active during that time. Most birds are diurnal.
Definition of diurnal adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
diurnal, nocturnal Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024 British Dictionary definitions for diurnal
diurnal meaning, definition, what is diurnal: happening or active in the daytime: Learn more.
