diurnal

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diurnal

1. (of flowers) open during the day and closed at night
2. (of animals) active during the day
3. a service book containing all the canonical hours except matins

diurnal

(dÿ-er -năl) Happening during a 24-hour day; daily.

Diurnal

(religion, spiritualism, and occult)

Diurnal means “of or belonging to the day.” In classical astrology, particular planets were classified as diurnal and others as nocturnal, no matter where they were in a horoscope. In contemporary astrology, planets are diurnal if they are located above the horizon (i.e., in houses seven through 12). Often astrologers will say that planets above the horizon line show their influence more in the public sphere, whereas planets below the horizon are more private, but this distinction clearly breaks down when considering planets in such locations as the twelfth house (a largely private house situated above the horizon). The term “diurnal arc” refers to the distance, expressed in degrees and minutes of a circle, that a planet traverses between its rising in the east and its setting in the west. Classical astrology also classified signs as diurnal (the masculine signs) and nocturnal (the feminine signs).

Sources:

Bach, Eleanor. Astrology from A to Z: An Illustrated Source Book. New York: Philosophical Library, 1990.
Brau, Jean-Louis, Helen Weaver, and Allan Edmands. Larousse Encyclopedia of Astrology. New York: New American Library, 1980.

diurnal

[dī′ərn·əl]
(biology)
Active during daylight hours.
(science and technology)
Occuring during the daytime.
References in periodicals archive ?
22) In all cases, morning GC dosing of diurnally active patients is associated with lowest risk of HPA disruption and other adverse effects.
Despite the quiescent weather suggested by figure 2, an accurate assessment of the dwell time necessary to produce the desired effect on an HEL engagement in the boundary layer could not be made without a high-fidelity forecast of the diurnally varying height of the boundary layer.
For example, reptile species that are active diurnally tend to exhibit relatively high and constant body temperatures, whereas nocturnal taxa display lower and more variable temperatures (Huey et al.
Transmission dynamics of diurnally subperiodic lymphatic filariasis transmitted by Ochlerotatus (Finlaya) niveus in the Andaman and Nicobar Islands.
Torrent frogs of the genus Hylodes are diurnally active stream-dwellers of the Atlantic forest in southern Brazil.
In addition, the absolute error for a number of different sub-samples was produced, in which the samples varied seasonally, diurnally, or meteorologically.
The wekiu bug, about the size of a grain of rice, is most often found under rocks and cinders where it preys diurnally (during daylight) on insects and even birds that are blown up from lower elevations and have died of exposure.
By harming a tiny lizard, any remorseless child refuses to give what in abundance it diurnally receives.
The Lepturinae in Ohio present a unique opportunity to study the diversity of a group of insects; species richness is high, the group is taxonomically well known, many species are diurnally active on blossoms, and individuals are relatively large and often distinctively colored and shaped, making identification easy.
Pacific whiting remain between 200-500 m deep when spawning and do not migrate diurnally (Alverson and Larkins, 1969; Bailey and Ainley, 1982; Ainley et al.
Because these analytes' concentrations do not vary diurnally, they can be measured on random specimens.
To create this component for a region as diverse as Nogales will be demanding, as land cover surfaces, diurnally varying wind conditions, air moisture and turbulence will all have to be accounted for.