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* of or belonging to or active during the day; "diurnal animals are active during the day"; "diurnal flowers are open during the day and closed at ... * having a daily cycle or occurring every day; "diurnal rotation of the heavens"

* A flower that opens only in the day; A book containing canonical offices but not matins; A diary or journal; A daily news publication; Occurring daily; Primarily active during the day; Open during daylight hours, closed at night; Repeated or recurring daily. ...

* Performed in twenty-four hours, such as the diurnal rotation of the Earth.

* Active by day-, as opposed to nocturnal.

* Occurring in the daytime. A patient may have a diurnal fever rather than a nocturnal one. Diurnal also can refer to recurring every day. ...

* Daily; related to actions which are completed in the course of a calendar day, and which typically recur every calendar day (eg, diurnal ...

* Most active during the daytime rather than at night.

* active by day.

* during the daytime. The diurnal resting places of mosquitoes, especially newly-fed females, may be important in malaria control

* Organisms that are active during daylight hours.

* Pertaining to the day time. Used in referring to the 'sect' of a chart: ie either diurnal or nocturnal. If someone is born during the day time when the Sun is above the horizon then they have a diurnal chart. If they are born at night then they have a nocturnal chart.

* day or daytime; daily or daily cycles; as opposed to nocturnal.

* The term diurnal refers to a tide which has a period or cycle of approximately one tidal day (about 25 hours). Diurnal tides usually have one high and one low tide each day. The tides at Karumba are a typical example of diurnal tides.

* literally "of the day", but here meaning having a period or a "tidal day", ie about 24.8 hours See also: semi-diurnal

* referring to daily phenomena.

* of flowers, opening only during daylight hours.

* Recurring daily. Diurnal processes on Earth repeat themselves every 24 hours but on the Moon repeat every 28 Earth days. The length of a lunar day is 28 Earth days.

* A reference to a period of one day.

* relating to or occurring in a 24-hour period; daily

* Daily, usually applied to events or cycles that repeat on daily intervals.

* Used to describe birds that are active during the day. Most birds are diurnal.

* Pertaining to the daylight portion of the 24-hour day.

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Classififcation?

Two different ways to classify times are the Diurnal Tide and the Semi-diurnal Tide. A diurnal tide has one episode of high water and one episode of low water each day. A semi-diurnal tide has two episodes of equal high water and two episodes of low equal water each day. They are both also classified as astronomical tides, meaning they are influenced by gravitational actions of the sun, moon and Earth.


How do diurnal variation affects body temperature?

during sleep, body metabolism slows down, as do muscle contractions. The body'stemperature is lowest in the morning before metabolism and muscle contractions begin increasing.


Do wasps have the ability to see at night?

Yes, wasps do not have the ability to see at night as they are diurnal insects, meaning they are active during the day and rely on daylight for navigation and hunting.


How do PTH levels vary during the day?

Parathyroid hormone (PTH) levels typically follow a diurnal pattern, with higher levels early in the morning and lower levels in the afternoon and evening. This pattern is influenced by factors such as calcium levels in the blood, vitamin D status, and feedback mechanisms that regulate PTH secretion.


What do butterflies do all night and day long?

Butterflies are typically active during the day, feeding on nectar, mating, and flying around to find food and lay eggs. At night, most butterflies rest by perching on branches or leaves, with some species hiding in shelters to avoid predators. They are diurnal creatures, meaning they are most active during daylight hours.