Search Result for "equinoctial circle":
Wordnet 3.0

NOUN (1)

1. the great circle on the celestial sphere midway between the celestial poles;
[syn: celestial equator, equinoctial circle, equinoctial line, equinoctial]



WordNet (r) 3.0 (2006):

equinoctial circle
    n 1: the great circle on the celestial sphere midway between the
         celestial poles [syn: celestial equator, equinoctial
         circle, equinoctial line, equinoctial]