EQUINOCTIALS
Scrabble letter values: E1Q10U1I1N1O1C3T1I1A1L1S1 = 23
Definition
EQUINOCTIALS is the plural of EQUINOCTIAL.
noun EQUINOCTIAL: the great circle on the celestial sphere midway between the celestial poles.
Synonyms of EQUINOCTIAL: celestial_equator, equinoctial_circle, equinoctial_line