equinoctial

Of or relating to the spring or autumnal equinox.

an equinoctial gale or storm, i.e. one happening at or near the time of the equinox, in any part of the world

In the Assyrian Standard [...] we see the figure of an Archer above that of a galloping Bull, and in another Assyrian Standard, that of Sargon II., we find not only the Archer and the Bull, the two constellations which 4,000 b.c. marked the equinoctial colure, but we may also clearly trace a reference to the two constellations which at the same date marked the solstitial colure, namely, those of the Lion and the Water-man.

Of or relating to the celestial equator.

Equatorial: of or relating to the equator of the Earth.

Of flowers: that open and close at particular times of day.

The great circle midway between the celestial poles; the celestial equator.

The scorching beams under the equinoctial, or extremity of cold within the circle Arctic, […] cannot avoid or expel this heat, fury, and rage of mortal men.

The terrestrial equator.

Nor is this vveather rare about the Æquinoctiall; by Mariners termed the Tornadoes: and tis ſo vncertaine, that novv you ſhall haue a quiet breath and gale, and ſuddenly an vnexpected violent guſt, and ſtorme, ſo fierce, that many times the ſhips vvill feele no helme.

O conſider my caſe, moſt blisfull Queen, […] Diſpell thoſe Clouds which hover 'twixt my King and his higheſt Counſell, […] that my great Law-making Court be forced to turn no more to polemicall Committees, […] but that they may come again to the old Parliamentary Rode, To the path of their Predeceſſours, to conſult of means how to ſweep away thoſe Cobwebs that hang in the Courts of Juſtice, and to make the Laws run in their right Channell; to retrench exceſſive fees, and finde remedies for the future, that the poor Client be not ſo peeled by his Lawyer, and made to ſuffer by ſuch monſtrous delays, that one may go from one Tropick to the other, and croſſe the Equinoctiall twenty times, before his ſute be done; […]

An equinoctial gale.

Heavy with storm the coast-lines grew, / And sharp the equinoctials blew