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. 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 — 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 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.… …   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 — [ē΄kwi näk′shəl] adj. [ME & OFr equinoxial < L aequinoctialis] 1. relating to either of the equinoxes or to equal periods of day and night 2. occurring at or about the time of an equinox 3. equatorial n. 1. CELESTIAL EQUATOR 2 …   English World dictionary

  • equinoctial — ► ADJECTIVE 1) relating to or at the time of the equinox. 2) at or near the equator …   English terms dictionary

  • equinoctial — adj. & n. adj. 1 happening at or near the time of an equinox (equinoctial gales). 2 of or relating to equal day and night. 3 at or near the (terrestrial) equator. n. (in full equinoctial line) = celestial equator. Phrases and idioms: equinoctial… …   Useful english dictionary

  • equinoctial day — The period between two successive transits of a particular meridian on the earth by the first point of the Aries or the successive transit of vernal equinox. Since the first point of Aries is not fixed in space, and it precesses along the… …   Aviation dictionary

  • equinoctial — I. adjective Date: 1545 1. relating to an equinox or to a state or the time of equal day and night 2. relating to the regions or climate on or near the equator 3. relating to the time when the sun passes an equinoctial point II. noun Date: 1521 1 …   New Collegiate Dictionary

  • equinoctial — /ikwəˈnɒkʃəl/ (say eekwuh nokshuhl), /ɛ / (say e ) adjective 1. relating to an equinox or the equinoxes, or to the equality of day and night. 2. relating to the celestial equator. 3. occurring at or about the time of an equinox: an equinoctial… …   Australian English dictionary

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