equinoctial

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Related to equinoctials: equinoctial storm, equinoctial line

e·qui·noc·tial

 (ē′kwə-nŏk′shəl, ĕk′wə-)
adj.
1. Relating to an equinox.
2. Relating to the celestial equator.
n.
1. A violent storm of wind and rain occurring at or near the time of the equinox.

[Middle English equinoxial, from Old French, from Latin aequinoctiālis, from aequinoctium, equinox; see equinox.]

equinoctial

(ˌiːkwɪˈnɒkʃəl)
adj
1. (Astronomy) relating to or occurring at either or both equinoxes
2. (Botany) (of a plant) having flowers that open and close at specific regular times
3. (Astronomy) astronomy of or relating to the celestial equator
n
4. (Physical Geography) a storm or gale at or near an equinox
5. (Astronomy) another name for celestial equator
[C14: from Latin aequinoctiālis concerning the equinox]

e•qui•noc•tial

(ˌi kwəˈnɒk ʃəl, ˌɛk wə-)

adj.
1. pertaining to an equinox or the equinoxes, or to the equality of day and night.
2. pertaining to the celestial equator.
3. occurring at or about the time of an equinox.
n.
5. a violent rainstorm occurring at about the time of an equinox.
[1350–1400; Middle English < Latin]

equinoctial

a severe storm at sea, usually occurring near the equinox and mistakenly thought to be the result of the sun crossing the equatorial line.
See also: Sea
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.equinoctial - the great circle on the celestial sphere midway between the celestial poles
great circle - a circular line on the surface of a sphere formed by intersecting it with a plane passing through the center
Adj.1.equinoctial - relating to the vicinity of the equator
2.equinoctial - relating to an equinox (when the lengths of night and day are equal)
Translations

equinoctial

[ˌiːkwɪˈnɒkʃəl] ADJequinoccial

equinoctial

adj gales, tidesäquinoktial
References in classic literature ?
But we must have already emerged and gone seven hundred or eight hundred leagues; and if I had here an astrolabe to take the altitude of the pole, I could tell thee how many we have travelled, though either I know little, or we have already crossed or shall shortly cross the equinoctial line which parts the two opposite poles midway.
While the Palais Bourbon, that wretched edifice, is being repaired at great expense, gusts of wind and equinoctial storms are allowed to destroy the magnificent painted windows of the Sainte-Chapelle.
The island of Serendib being situated on the equinoctial line, the days and nights there are of equal length.