Definition of
equinoctial has definitions from the field of geography
1
[ adjective ] relating to an equinox (when the lengths or night and day are equal)

Related terms

equinox

2
[ adjective ] relating to the vicinity of the equator

Related terms

equator

3
[ noun ] (geography) the great circle on the celestial sphere midway between the celestial poles

Synonyms

equinoctial_circle equinoctial_line celestial_equator

Related terms

great_circle right_ascension

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