AUTUMNALEQUINOX

autumnal equinox

Noun

  1. the moment when the sun appears to cross the celestial equator, heading southward
  2. the point where the ecliptic intersects the celestial equator at that time


The above text is a snippet from Wiktionary: autumnal equinox
and as such is available under the Creative Commons Attribution/Share-Alike License.

Need help with a clue?
Try your search in the crossword dictionary!