Note: The translation for this entry is currently under quality review. Some content is temporarily displayed in English only.

equinox

/ˈiːkwɪˌnɒks/

[C] Countable

pl: equinoxes

This term describes a precise astronomical moment of balance. It carries a connotation of symmetry and transition, serving as a cosmic pivot point between the expanding light of summer and the encroaching darkness of winter. While "solstice" refers to the extremes of the solar cycle (longest or shortest day), "equinox" represents the exact midpoint. It is used primarily in scientific, astrological, or seasonal contexts to mark a change in the earth's tilt relative to the sun.

Used to refer to the specific occurrences in the yearly cycle, such as the two distinct equinoxes that happen every year.

Meanings

Noun

[the sun and earth]

The time or date (occurring twice each year) when the sun is exactly above the equator, making day and night of equal length.

"The vernal equinox marks the beginning of spring in the Northern Hemisphere."

Last Updated: May 31, 2026•Report an Error