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Meaning of autumnal equinox
The primary meaning of "autumnal equinox" refers to the time of year when day and night are approximately equal in duration, occurring around September 22 or 23 in the Northern Hemisphere.
Etymology of autumnal equinox
The word "autumnal" comes from the Latin "autumnalis," meaning "of or pertaining to autumn."
The word "equinox" comes from the Latin "aequinoctium," meaning "equal night," which is derived from "aequus," meaning "equal," and "nox," meaning "night."
The term "autumnal equinox" has been used since the 15th century to describe the time of year when the sun crosses the celestial equator from north to south.
Synonyms
Definitions
- The autumnal equinox is the time of year when the sun crosses the celestial equator from north to south, marking the beginning of autumn in the Northern Hemisphere and spring in the Southern Hemisphere.
- * It is one of the two equinoxes that occur in a year, the other being the vernal equinox.
Usage Examples
- The autumnal equinox marks the beginning of shorter days and cooler nights in the Northern Hemisphere.
- * Many cultures celebrate the autumnal equinox with festivals and rituals to mark the changing of the seasons.
- * The autumnal equinox is a time of harvest and gratitude for the crops that have been grown and gathered throughout the year.