equinox

noun

Definition

each of the two times of the year when days and nights are of equal length
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Synonyms & Antonyms

  • equinoctial point
  • cosmic time
  • celestial point


  • literally any other time of the year

Sentences

1) The spring equinox is called the vernal equinox and occurs on March 21.

2) An equinox marks the first day of the season.

Equinoxes