equinoctial
the great circle on the celestial sphere midway between the celestial poles • Syn: celestial equator, equinoctial circle, equinoctial line • Hypernyms: great circle
1. relating to the vicinity of the equator • Pertains to noun: equator 2. relating to an equinox (when the lengths of night and day are equal) • Pertains to noun: equinox • Derivationally related forms: equinox
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