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
- (* This difference in the heights of consecutive tides is termed the diurnal inequality.
- * (* This difference in the heights of consecutive tides is termed the diurnal inequality.
- Scientists have now observed that one of these atmospheric tides, known as diurnal wavenumber
- There is also a great difference between day and night high water; the difference between them is called the diurnal tide.
- Thursday and Friday will both feature "diurnal" cloudiness, which means some morning sunshine followed by increasing clouds and mostly cloudy afternoons.
- My search revealed the words "diurnal," "dewlap," "osmoregulation," and "Guatemala," all technical terms that relate to the iguana in some way, shape or form.
- Apparently, McLeanian logic tells us that the rotation of the earth also explains the seasons, considering how well it correlates with the short-term diurnal variation...
- For the circle around the insertion is seen to increase, and to inflame; and I believe, undergoes a kind of diurnal paroxysm of torpor and paleness with a succeeding increase of action and colour, like a topical fever-fit.
- God then willed the revolution of the outermost sphere, known as the diurnal sphere, which caused all the other spheres to revolve with it, thereby producing changes in the hyle in accordance with the motions of the sphere.
- In a similar manner, what is called the diurnal variation of the barometer, which is very small compared with the variations arising from the irregular changes in the state of the atmosphere, was discovered by comparing the average height of the barometer at different hours of the day.
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