Diurnal

Diurnal ("daily") may refer to:

Diurnality, the behavior of an animal that is active in the daytime
Actions which are completed in 24 hours and are repeated every 24 hours, e. A day (symbol d is a unit of Time equivalent to 24 Hours and the duration of a single Rotation of planet Earth with respect to the In Animal behavior, diurnality indicates an Animal that is active during the Daytime and rests during the Night. g. the sun reaching its zenith.
Diurnal motion, the apparent motion of stars around the Earth, caused by the Earth's rotation around its axis. Diurnal motion is an astronomical term referring to the apparent daily motion of Stars around the Earth, or more precisely around the two More generally it means repeating daily as in e. g. diurnal effect
Diurnal phase shift, the phase shift of electromagnetic signals associated with daily changes in the ionosphere
Diurnal temperature variation, the daily temperature shift that occurs from daytime to night

In astrology:

Diurnal chart, a chart for a given date, based on the natal chart
Diurnal planet, a planet in a sect for which the Sun is above the horizon
Diurnal sign, a sign in the zodiac whose natural positions are on the southern hemisphere of the horoscope

In astronomy:

Diurnal arc, the time, as expressed in right ascension, it takes a planet, point, or degree to move from its rising point to its setting point

In Telecommunication, diurnal phase shift is the phase shift of electromagnetic signals associated with daily changes in the Ionosphere. Diurnal temperature variation is a Meteorological term that relates to the variation in Temperature that occurs from the highs of the Day to the cool of The DAYTIME service is an Internet protocol defined in RFC 867 Night or nighttime is the period of Time when the Sun is below the Horizon. In Natal astrology, a natal chart is a Horoscope /astrological chart drawn for the exact time of an individual's birth at a particular place on Earth Sect is an ancient Astrological concept in which the seven traditional "planets" (including the Sun, the Moon and the five Starry planets In Astrology, a diurnal sign is a sign in the Zodiac whose natural positions are on the southern hemisphere of the Horoscope. In Astrology, a diurnal arc is the time as expressed in right ascension it takes a Planet, point or degree to move from its rising point to its setting point

Dictionary

-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.
(uncommon) Done once every day; daily, quotidian.
(archaic) Published daily.

-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.

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