
1) Great circle 2) Relating to an equinox 3) Seasonal storm
Found on
https://www.crosswordclues.com/clue/equinoctial

• (a.) 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. • (a.) Pertaining to an equinox, or the equinoxes, or to the time of equal day and night; as, the equinoctial line. • (a.) Pertaining to the r...
Found on
http://thinkexist.com/dictionary/meaning/equinoctial/

1. Pertaining to an equinox, or the equinoxes, or to the time of equal day and night; as, the equinoctial line. ... 2. Pertaining to the regions or climate of the equinoctial line or equator; in or near that line; as, equinoctial heat; an equinoctial sun. ... 3. Pertaining to the time when the sun enters the equinoctial points; as, an equinoctial g...
Found on
http://www.encyclo.co.uk/local/20973
E`qui·noc'tial adjective [ Latin
aequinoctials , from
aequinoctium equinox: confer French
équinoxial . See
Equinox .]
1. Pertaining to an equinox, or the equinoxes, or to the time of equal day and night; as, the
equinoctial line.
2. Pertaining to ...
Found on
http://www.encyclo.co.uk/webster/E/60

In astronomy the equinoctial is the circle in the heavens otherwise known as the celestial equator. When the sun is on the equator there is equal length of day and night over all the earth: hence the name equinoctial.
Found on
http://www.probertencyclopaedia.com/browse/GE.HTM

[
adj] - relating to the vicinity of the equator 2. [adj] - relating to an equinox (when the lengths or night and day are equal)
Found on
http://www.webdictionary.co.uk/definition.php?query=equinoctial

equinoctial 1. A reference to a state of equal day and night. 2. The period or point of the equinox. 3. 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.
Found on
http://www.wordinfo.info/words/index/info/view_unit/1402/
adjective relating to an equinox (when the lengths or night and day are equal)
Found on
https://www.encyclo.co.uk/local/20974

pertaining to an equinox or the equinoxes, or to the equality of day and night. · pertaining to the celestial equator. · occurring at or about the time of an equinox. · (of a flower) opening regularly at a certain hour.
Found on
https://www.infoplease.com/dictionary/equinoctial
No exact match found.