equinox
Translation
equinox
Examples
The spring equinox occurs around March 21st.
The spring equinox occurs around March 21st.
There are two equinoxes each year.
There are two equinoxes each year.
Grammar Patterns
the spring/autumnal equinox The spring equinox occurs around March 21st.
Similar Words
Related concepts: solstice
Etymology
From Latin 'aequus' (equal) + 'nox' (night). It literally means 'equal night', referring to when day and night are of equal length.
Memory Tips
Break it down: 'equi-' (equal) + 'nox' (night). It's the day when day and night are of 'equal' length.