Definition of diurnal

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Diurnal (a.) 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..

Lern More About Diurnal

Diurnal :: Diurnal (a.) Relating to the daytime; belonging to the period of daylight, distinguished from the night; -- opposed to nocturnal; as, diurnal heat; diurnal hours..
Meridian :: Meridian (a.) Being at, or pertaining to, midday; belonging to, or passing through, the highest point attained by the sun in his diurnal course..
Daily :: Daily (a.) Happening, or belonging to, each successive day; diurnal; as, daily labor; a daily bulletin..
Butterfly :: Butterfly (n.) A general name for the numerous species of diurnal Lepidoptera.
Diurnal :: Diurnal (a.) Opening during the day, and closing at night; -- said of flowers or leaves..
Semidiurnal :: Semidiurnal (a.) Pertaining to, or traversed in, six hours, or in half the time between the rising and setting of a heavenly body; as, a semidiurnal arc..
Diurnalist :: Diurnalist (n.) A journalist.
Diurnally :: Diurnally (adv.) Daily; every day.
Aberration :: Aberration (n.) A small periodical change of position in the stars and other heavenly bodies, due to the combined effect of the motion of light and the motion of the observer; called annual aberration, when the observer's motion is that of the earth in its orbit, and daily or diurnal aberration, when of the earth on its axis; amounting when greatest, in the former case, to 20.4'', and in the latter, to 0.3''. Planetary aberration is that due to the motion of light and the motion of the planet re
Nocturnal :: Nocturnal (a.) Of, pertaining to, done or occuring in, the night; as, nocturnal darkness, cries, expedition, etc.; -- opposed to diurnal..
Equidiurnal :: Equidiurnal (a.) Pertaining to the time of equal day and night; -- applied to the equinoctial line.
Diurnal :: Diurnal (a.) Active by day; -- applied especially to the eagles and hawks among raptorial birds, and to butterflies (Diurna) among insects..
Urania :: Urania (n.) A genus of large, brilliantly colored moths native of the West Indies and South America. Their bright colored and tailed hind wings and their diurnal flight cause them to closely resemble butterflies..
Ephemeral :: Ephemeral (a.) Beginning and ending in a day; existing only, or no longer than, a day; diurnal; as, an ephemeral flower..
Journal :: Journal (a.) Daily; diurnal.
Diurnal :: Diurnal (a.) A daybook; a journal.
Flood :: Flood (v. i.) The flowing in of the tide; the semidiurnal swell or rise of water in the ocean; -- opposed to ebb; as, young flood; high flood..
Diurnal :: Diurnal (a.) A diurnal bird or insect.
Diurnalness :: Diurnalness (n.) The quality of being diurnal.
Diurnal :: Diurnal (a.) A small volume containing the daily service for the little hours, viz., prime, tierce, sext, nones, vespers, and compline..
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