Equinox

usgb/ˈekwɪnɑːks,ˈiːkwɪnɑːks/
noun

One of two days in the year when day and night are of same length, usually around March 21 and September 23.

The sun crosses the equator during the equinox which marks the beginning of spring and autumn seasons.
Visual representation of "equinox" - One of two days in the year when day and night are of same length, usually around March 21 and September 23.

Often appears as...

  • vernal equinox
  • autumnal equinox
Definition 1 of 1
Visual representation of "equinox"
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Equal Day/Night

Equinox means 'equal night' in Latin, referring to the time when daylight and night are nearly the same duration.

Illustration for Equal Day/Night
They organized a picnic on the day of the equinox to enjoy the balanced daylight.
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Happens Twice

Occurs two times each year, so specify by saying 'vernal' for spring, or 'autumnal' for fall.

Illustration for Happens Twice
We're planning a festival for the autumnal equinox.
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Cultural Significance

Many cultures celebrate equinoxes, associating them with renewal or thanksgiving rituals.

Illustration for Cultural Significance
The equinox is significant in many cultures; it's when the Stonehenge festival takes place.
Visual representation of the word "Equinox"

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