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Translate files Equinox
/ˈɛkwɪnɒks/
Meaning & Definition
noun
Either of the two points in the year when day and night are of approximately equal length, occurring around March 21 and September 23.
The spring equinox marks the beginning of spring in the Northern Hemisphere.
The time when the sun crosses the celestial equator, making day and night approximately equal in length.
During the autumn equinox, many cultures celebrate the harvest festival.
The moment in time when the sun is directly above the equator, resulting in equal day and night lengths.
Astronomers note the equinox as an important event in the solar calendar.
Etymology
From Latin 'aequinoctium', meaning 'equal night'.
Common Phrases and Expressions
vernal equinox:
The spring equinox usually marking the start of spring.
autumnal equinox:
The autumn equinox signaling the beginning of fall.