Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun equinoctial

1 sense of equinoctial

Sense 1
celestial equator, equinoctial circle, equinoctial line, equinoctial -- (the great circle on the celestial sphere midway between the celestial poles)
       => great circle -- (a circular line on the surface of a sphere formed by intersecting it with a plane passing through the center)

Similarity of adj equinoctial

2 senses of equinoctial

Sense 1
equinoctial -- (relating to the vicinity of the equator)

Sense 2
equinoctial -- (relating to an equinox (when the lengths of night and day are equal))