diurnal

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di·ur·nal

 (dī-ûr′nəl)
adj.
1. Relating to or occurring in a 24-hour period; daily.
2. Occurring or active during the daytime rather than at night: diurnal animals.
3. Botany Opening during daylight hours and closing at night.
n.
1. A book containing all the offices for the daily canonical hours of prayer except matins.
2. Archaic
a. A diary or journal.
b. A daily newspaper.

[Middle English, from Late Latin diurnālis, from Latin diurnus, from diēs, day; see dyeu- in Indo-European roots.]

di·ur′nal·ly adv.

diurnal

(daɪˈɜːnəl)
adj
1. happening during the day or daily
2. (Botany) (of flowers) open during the day and closed at night
3. (Zoology) (of animals) active during the day. Compare nocturnal
n
(Roman Catholic Church) a service book containing all the canonical hours except matins
[C15: from Late Latin diurnālis, from Latin diurnus, from diēs day]
diˈurnally adv

di•ur•nal

(daɪˈɜr nl)

adj.
1. occurring each day; daily.
2. of or belonging to the daytime.
3. occurring in daily cycles: the apparent diurnal motion of celestial bodies.
4. active by day, as certain birds and insects (opposed to nocturnal).
5. opening by day and closing by night, as certain flowers.
n.
6. Archaic. diary.
7. Archaic. newspaper.
[1400–50; late Middle English < Latin diurnālis <diurn(us) daily]
di•ur′nal•ly, adv.

di·ur·nal

(dī-ûr′nəl)
1. Occurring in a 24-hour period; daily.
2. Most active during the daytime. Many animals, including the apes, are diurnal. Compare nocturnal.
3. Having leaves or flowers that open in daylight and close at night. The morning glory and crocus are diurnal.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.diurnal - 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 night"; "diurnal and nocturnal offices"
biological science, biology - the science that studies living organisms
nocturnal - belonging to or active during the night; "nocturnal animals are active at night"; "nocturnal plants have flowers that open at night and close by day"
2.diurnal - having a daily cycle or occurring every day; "diurnal rotation of the heavens"
periodic, periodical - happening or recurring at regular intervals; "the periodic appearance of the seventeen-year locust"

diurnal

adjective
1. daytime, active during the day, non-nocturnal Kangaroos are diurnal animals
2. daily, regular, everyday, circadian, quotidian the diurnal life of monasteries
Translations
denní
avaavadiurnaalinenjokapäiväinenkukkapäivä
napinappali

diurnal

[daɪˈɜːnl] ADJdiurno

diurnal

[daɪˈɜːrnəl] adj (formal)diurne

diurnal

adj (liter: = of the daytime) → Tages-; the earth’s diurnal rotationdie tägliche Umdrehung der Erde
n (Eccl) → Diurnal(e) nt
References in periodicals archive ?
All three assays exhibited similar diurnal rhythm, with peak excretion between 0400 to 0700 and a nadir between 1300 to 1600.
Behavioral time budget and diurnal rhythm of white-headed duck in Northwest China.
A graphic representation of the diurnal rhythm of salivary cortisol is then produced and compared to a normal rhythm in healthy individuals.
LNSC measures the free cortisol in the saliva at the time point when cortisol should be at its lowest level and helps detect the loss of diurnal rhythm. In this study, LNSC was much less commonly normalized than mUFC, indicating improvement in, but generally incomplete normalization, of cortisol diurnal rhythmicity.
The team first measured the diurnal rhythm of salivary cortisol levels from the volunteers and then exposed one group to stress test in the morning, and another to the evening.
To visualize the diurnal rhythm of cystatin C, 24-h concentration curves were fitted for both study groups using cosinor rhythmometry.
(1990), the diurnal C[H.sub.4] emission rhythm may increase with the increasing diurnal rhythm of root exudates, resulting in higher apparent activation energy ([E.sub.a]).
It has been reported that Glast (glutamate/aspartate transporter) expression and protein levels within the SCN present a diurnal rhythm in a light/dark (12/12h) cycle [31].
A disruption of the diurnal rhythm of cortisol causes fatigue, depression, ill health, and insulin resistance.
Collection of twelve-hour urine samples allowed for assessment of diurnal rhythm but not the precise timing for 6-SMT excretion.
Reassessment of glucose diurnal rhythm revealed that her plasma glucose level was 59-83 mg/dL during the intake of 10 mg of hydrocortisone (Table 3(a)).
The endocrinologist explained that this reverse habit fractures the body's diurnal rhythm or the body's sleep-wake cycles, which causes the body to suffer a lot of stress.