Equinoctial colure
Equinoctial E`qui*noc"tial, a. [L. aequinoctials, fr. aequinoctium equinox: cf. F. ['e]quinoxial. See {Equinox}.] 1. Pertaining to an equinox, or the equinoxes, or to the time of equal day and night; as, the equinoctial line. [1913 Webster]

2. Pertaining to the regions or climate of the equinoctial line or equator; in or near that line; as, equinoctial heat; an equinoctial sun. [1913 Webster]

3. Pertaining to the time when the sun enters the equinoctial points; as, an equinoctial gale or storm, that is, one happening at or near the time of the equinox, in any part of the world. [1913 Webster]

{Equinoctial colure} (Astron.), the meridian passing through the equinoctial points.

{Equinoctial line} (Astron.), the celestial equator; -- so called because when the sun is on it, the nights and days are of equal length in all parts of the world. See {Equator}. [1913 Webster]

Thrice the equinoctial line He circled. --Milton.

{Equinoctial points} (Astron.), the two points where the celestial and ecliptic intersect each other; the one being in the first point of Aries, the other in the first point of Libra.

{Equinoctial time} (Astron.) reckoned in any year from the instant when the mean sun is at the mean vernal equinoctial point. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • equinoctial colure — noun : the circle of 0 and 12 hours right ascension passing through the equinoctial points of the celestial sphere * * * equinoctial colure, the great circle passing through the poles and equinoctial points …   Useful english dictionary

  • equinoctial colure — That great circle of the celestial sphere through the celestial poles and equinoxes. The hour circle of the vernal equinox. It is an imaginary point among the stars where the sun apparently crosses the equator from south to north on or about… …   Aviation dictionary

  • Colure — Co*lure (k[ o]*l[=u]r ), n.; pl. {Colures} (k[ o]*l[=u]rz ). [F. colure, L. coluri, pl., fr. Gr. ko loyros dock tailed, a i ko loyroi (sc. grammai lines) the colures; fr. ko los docked, stunted + o yra tail. So named because a part is always… …   The Collaborative International Dictionary of English

  • Equinoctial — E qui*noc tial, a. [L. aequinoctials, fr. aequinoctium equinox: cf. F. [ e]quinoxial. See {Equinox}.] 1. Pertaining to an equinox, or the equinoxes, or to the time of equal day and night; as, the equinoctial line. [1913 Webster] 2. Pertaining to… …   The Collaborative International Dictionary of English

  • Equinoctial line — Equinoctial E qui*noc tial, a. [L. aequinoctials, fr. aequinoctium equinox: cf. F. [ e]quinoxial. See {Equinox}.] 1. Pertaining to an equinox, or the equinoxes, or to the time of equal day and night; as, the equinoctial line. [1913 Webster] 2.… …   The Collaborative International Dictionary of English

  • Equinoctial points — Equinoctial E qui*noc tial, a. [L. aequinoctials, fr. aequinoctium equinox: cf. F. [ e]quinoxial. See {Equinox}.] 1. Pertaining to an equinox, or the equinoxes, or to the time of equal day and night; as, the equinoctial line. [1913 Webster] 2.… …   The Collaborative International Dictionary of English

  • Equinoctial time — Equinoctial E qui*noc tial, a. [L. aequinoctials, fr. aequinoctium equinox: cf. F. [ e]quinoxial. See {Equinox}.] 1. Pertaining to an equinox, or the equinoxes, or to the time of equal day and night; as, the equinoctial line. [1913 Webster] 2.… …   The Collaborative International Dictionary of English

  • colure — [kō loor′, kəloor′; kō′loor΄] n. [< L coluri < Gr kolouroi, the colures, lit., dock tailed (ones), pl. of kolouros < kolos, docked (see HOLT) + oura, tail (see URO 2): the “tail” (i.e., the lower part) is cut off from view by the… …   English World dictionary

  • Colure — Orange = equinoctial colure Blue = solstitial colure G = e …   Wikipedia

  • colure —   n. celestial circle intersecting other at poles.    ♦ equinoctial colure, such circle passing through equinoctial points.    ♦ solstitial colure, such circle at right angles to equinoctial colure …   Dictionary of difficult words

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