Diurnal
Diurnal Di*ur"nal, a. [L. diurnalis, fr. dies day. See {Deity}, and cf. {Journal}.] 1. Relating to the daytime; belonging to the period of daylight, distinguished from the night; -- opposed to {nocturnal}; as, diurnal heat; diurnal hours. [1913 Webster]

2. Daily; recurring every day; performed in a day; going through its changes in a day; constituting the measure of a day; as, a diurnal fever; a diurnal task; diurnal aberration, or diurnal parallax; the diurnal revolution of the earth. [1913 Webster]

Ere twice the horses of the sun shall bring Their fiery torcher his diurnal ring. --Shak. [1913 Webster]

3. (Bot.) Opening during the day, and closing at night; -- said of flowers or leaves. [1913 Webster]

4. (Zo["o]l.) Active by day; -- applied especially to the eagles and hawks among raptorial birds, and to butterflies (Diurna) among insects. [1913 Webster]

{Diurnal aberration} (Anat.), the aberration of light arising from the effect of the earth's rotation upon the apparent direction of motion of light.

{Diurnal arc}, the arc described by the sun during the daytime or while above the horizon; hence, the arc described by the moon or a star from rising to setting.

{Diurnal circle}, the apparent circle described by a celestial body in consequence of the earth's rotation.

{Diurnal motion of the earth}, the motion of the earth upon its axis which is described in twenty-four hours.

{Diurnal motion of a heavenly body}, that apparent motion of the heavenly body which is due to the earth's diurnal motion.

{Diurnal parallax}. See under {Parallax}.

{Diurnal revolution of a planet}, the motion of the planet upon its own axis which constitutes one complete revolution.

Syn: See {Daily}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Synonyms:

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  • diurnal — diurnal, aux [ djyrnal, o ] n. m. • 1671; « diurne » 1525; lat. diurnalis ♦ Relig. Livre de prières qui renferme spécialement l office du jour. ● diurnal nom masculin (latin diurnalis) Livre de prières, extrait du bréviaire, qui contient… …   Encyclopédie Universelle

  • Diurnal — ( daily ) may refer to: Diurnal cycle, any pattern that recurs daily Diurnality, the behavior of animals and plants that are active in the daytime Diurnal motion, the apparent motion of stars around the Earth Diurnal phase shift, a phase shift of …   Wikipedia

  • diurnal — 1. (di ur nal) s. m. Nom d une sorte de bréviaire, où l on a recueilli les prières qui sont chaque jour à l usage des gens d Église.    Au plur. Des diurnaux. ÉTYMOLOGIE    Lat. diurnalis, de diurnus, diurne. SUPPLÉMENT AU DICTIONNAIRE 1. DIURNAL …   Dictionnaire de la Langue Française d'Émile Littré

  • diurnal — diurnál s. n. (sil. di ur ) Trimis de siveco, 10.08.2004. Sursa: Dicţionar ortografic  DIURNÁL s.n. 1. Carte care cuprinde rugăciunile de zi (la catolici). 2. Povestire a faptelor zilnice, povestire zi de zi a faptelor. [pron. di ur , pl. le. /… …   Dicționar Român

  • Diurnal — Di*ur nal, n. [Cf. F. diurnal a prayerbook. See {Diurnal}, a.] 1. A daybook; a journal. [Obs.] Tatler. [1913 Webster] 2. (R. C. Ch.) A small volume containing the daily service for the little hours, viz., prime, tierce, sext, nones, vespers, and… …   The Collaborative International Dictionary of English

  • diurnal — is not an ordinary synonym of daily but has special technical meanings (especially in medicine and the life sciences) opposed to nocturnal: • During the last two hundred years, the European continent has seen a period of intensifying persecution… …   Modern English usage

  • diurnal — DIURNAL. s. m. Livre de prières qui contient l Office Canonial de chaque jour, à l exception des Matines, et quelquefois des Laudes. Diurnal Romain. Diurnal à l usage de Paris …   Dictionnaire de l'Académie Française 1798

  • diurnal — index daily Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • diurnal — late 14c., from L.L. diurnalis daily, from L. dies day + urnus, an adjectival suffix denoting time (Cf. hibernus wintery ). Dies day is from PIE root *dyeu (Cf. Skt. diva by day, Welsh diw, Bret. deiz day; Arm …   Etymology dictionary

  • diurnal — |i u| adj. 2 g. 1. Cotidiano. • s. m. 2. Livro de orações para cada dia do ano …   Dicionário da Língua Portuguesa

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