diurnal
IPA: daɪˈɝnʌɫ
noun
- 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.
adjective
- Happening or occurring during daylight, or primarily active during that time.
- (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.
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Examples of "diurnal" in Sentences
- Diurnal animals are more active during the daytime.
- The third shows the day long period of a diurnal tide.
- Kob are diurnal, but inactive during the heat of the day.
- They are diurnal, but inactive during the heat of the day.
- The American Pika is diurnal, or active throughout the day.
- It oscillates throughout the day, producing the diurnal tides.
- They are diurnal, though they rest during the heat of the day.
- They are diurnal but are less active during the heat of the day.
- The lizard is diurnal and therefore is usually only active in the day.
- This Old World monkey is diurnal and spends most of the day in the trees.
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