diurnal


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to diurnal: diurnal tide, diurnal enuresis

diurnal

 [di-er´nal]
pertaining to or occurring during the daytime, or period of light.

di·ur·nal

(dī-ŭr'năl),
1. Pertaining to the daylight hours; opposite of nocturnal.
2. Repeating once each 24 hours, for example, a diurnal variation or a diurnal rhythm. Compare: circadian.
[L. diurnus, of the day]

diurnal

(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.
di·ur′nal·ly adv.

diurnal

adjective Daily, during the day.

di·ur·nal

(dī-ŭr'năl)
1. Pertaining to the daylight hours; opposite of nocturnal.
2. Repeating once each 24 hours (e.g., a diurnal variation or a diurnal rhythm).
Compare: circadian
[L. diurnus, of the day]

diurnal

Pertaining to a day. Occurring daily or in a day.

di·ur·nal

(dī-ŭr'năl)
1. Pertaining to the daylight hours.
2. Repeating once each 24 hours.
[L. diurnus, of the day]
Mentioned in ?
References in periodicals archive ?
But children who were in families that had lower income and higher adversity tended to have both lower executive function and an atypical diurnal cortisol pattern.
Early life challenges affect how children focus on activities
At the retinal level, the "visual streak" assumes a more radial and symmetrical shape in owls, (Lisney et al., 2012) compared to the much more elongated streak of diurnal raptors.
Numero y Distribucion Topografica de Celulas Ganglionares de la Retina en Rapaces Diurnas y Nocturnas
A second-degree polynomial nonparametric local-regression model was used to fit a smooth curve to the C[H.sub.4] diurnal emission data.
Diurnal variation of methane emission from a paddy field in Brazilian Southeast/Variacao diurna da emissao de metano em arroz irrigado no Sudeste do Brasil
A similar result was found in the 20-h aerated tanks, i.e., those tanks with nocturnal + diurnal aeration.
Association between nocturnal and diurnal aeration in Nile tilapia rearing tanks/Associacao entre aeracao noturna e diurna em tanques de cultivo de tilapia do Nilo
The visual acuity and color perception of simians is comparable to those of diurnal reptiles and birds -- groups that never left the daytime niche.
Scientists Find Dinosaurs Partially Responsible for Mammalian Sleep Patterns
Our main objective was to test the hypothesis that diurnal rainfall affects the number of active P.
Fuerte efecto negativo de las lluvias diurnas sobre la actividad nocturna de una arana errante en la Amazonia Central
Diurnal temperature range set at 10degC was optimal for biomass, plant height, stem diameter, length and weight of technical stem, and fiber weight of flax, while DIF set at 5degC benefited fiber content and seed weight.
Influence of Diurnal Temperature Range on the Development of Fiber Cells in Flax (Linum usitatissimum)
AI requires life-long treatment and Diurnal's novel approach to product development has the potential to significantly improve these young patients' lives.
CLINIGEN & DIURNAL PARTNER FOR EUROPEAN MA PROGRAM
We compared diurnal type to nocturnal type to assess the relationship between 24-hour IOP variation and demographic and clinical characteristics.
Twenty-Four-Hour Variation of Intraocular Pressure in Primary Open-Angle Glaucoma Treated with Triple Eye Drops
Normal sleep and atypical sleep groups were plotted as the proportions of sleep (normal sleep + atypical sleep + wake + undefined = 100%) over the 24-hour period together with melatonin to visualize diurnal variation of sleep and melatonin.
Melatonin Secretion Pattern in Critically 111 Patients: A Pilot Descriptive Study
Whether the diurnal rhythm of hs-cTnT extends beyond male patients with type 2 diabetes and whether hs-cTnT and hs-cTnI are equally affected is unknown.
Diurnal Rhythm of Cardiac Troponin: Consequences for the Diagnosis of Acute Myocardial Infarction
The number of toll collectors [12/68 (17.7%) vs 1/28 (3.5%)] with diurnal PEF variability in the working period was higher than that of controls (p=0.058).
Are serum eosinophilic cationic protein levels of toll collectors affected by diesel exhaust exposure?

Medical browser ?
Full browser ?