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- Happening or occurring during daylight, or primarily active during that time.
- Most birds are diurnal.
- 1972, Laurence Monroe Klauber, Rattlesnakes: Their Habits, Life Histories, and Influence on Mankind, Volume 1
- However, in general, lizards are more diurnal than rattlers, which may be one of the reasons why young rattlers are more diurnal than adults.
- Ere twice the horses of the sun shall bring / Their fiery torcher his diurnal ring.
- (botany) Said of a flower open, or releasing its perfume during daylight hours, but not at night.
- Having a daily cycle that is completed every 24 hours, usually referring to tasks, processes, tides, or sunrise to sunset; circadian.
- (uncommon) Done once every day; daily, quotidian.
- (archaic) Published daily.
- For quotations of use of this term, see Citations:diurnal.
- (having a daily cycle): circadian (biology)
- (active or open during the day): crepuscular
happening during daylight; primarily active during the day
botany; of flowers open or releasing perfume during the day
having a daily cycle
done once every day
- The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout#Translations.
Translations to be checked
diurnal (plural diurnals)
- A flower that opens only in the day.
- (Catholicism) A book containing canonical offices performed during the day, hence not matins.
- (archaic) A diary or journal.
- (archaic) A daily news publication.
A flower that opens during the day