Results for autumnal equinox
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autumnal equinox


n.
  1. The point at which the ecliptic intersects the celestial equator, the sun having a southerly motion.
  2. The moment at which the sun passes through the autumnal equinox, about September 23, marking the beginning of autumn in the Northern Hemisphere.

 
 
WordNet: autumnal equinox
Note: click on a word meaning below to see its connections and related words.

The noun has 2 meanings:

Meaning #1: September 22
  Synonyms: September equinox, fall equinox
  Antonym: vernal equinox (meaning #1)

Meaning #2: (astronomy) the equinoctial point that lies in the constellation of Virgo


 
 

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Copyrights:

Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2007. Published by Houghton Mifflin Company. All rights reserved.  Read more
WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved.  Read more

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