equinoctial.
Of or relating to the spring or autumnal equinox.
Meaning & usage
Of or relating to the spring or autumnal equinox.
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.
Where this word comes from
Inherited from Middle English equinoctial, equinoccial, equinoxial, from Old French equinoxial, from Latin (circulus) aequinoctiālis, from aequinoctium + -alis.
The great circle midway between the celestial poles; the celestial equator.
The terrestrial equator.
An equinoctial gale.
Where this word comes from
Inherited from Middle English equinoctial, equinoccial, equinoxial, from Old French equinoxial, from Latin (circulus) aequinoctiālis, from aequinoctium + -alis.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.