Equinox – the time (twice a year) when day and night are of equal length

(Pronounced eh-kwih-noks)

To remember the definition of the word equinox, use the following mnemonic:

Equipped with numerous clocks (equinox), the scientist discovered that day and night were equal in length twice a year.

Examples of equinox in a sentence

In the Chinese calendar, the Spring Equinox is always during the second month.

An equinox occurs when the sun is directly above the equator.

The spiritual group waited until the spring equinox to have a huge party in a field.