equinox
eq-ui-nox
noun
Either of two times a year when day and night are of equal length.
"The vernal equinox occurs around 20th March."
Thesaurus
Synonyms: equinoctial point
eq-ui-nox
Either of two times a year when day and night are of equal length.
"The vernal equinox occurs around 20th March."
Synonyms: equinoctial point