equinocˈtial adjective

Relating to the equinoxes, the time of the equinoxes, or to the regions about the equator

1. An equinoctial gale
2. The celestial equator or equinoctial line

equinocˈtially adverb

In the direction of the equinox

equinoctial gales plural noun

High gales popularly supposed to prevail about the times of the equinoxes (the belief is unsupported by scientific observation)

equinoctial point noun

Either of the two points in the heavens where the equinoctial line cuts the ecliptic

equinoctial year see under year