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autumnal equinox

[aw-tuhm-nl ee-kwuh-noks, ek-wuh-noks] / ɔˈtʌm nl ˈi kwəˌnɒks, ˈɛk wəˌnɒks /
NOUN
autumn
Synonyms
Antonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Or, as we say north of the equator, happy autumnal equinox!

From Scientific American

On September 23, 2023, the autumnal equinox will signal the coming of fall for the Northern Hemisphere.

From National Geographic

Traditionally, summer and winter solstices helped mark the changing of the seasons—along with their counterparts, the spring and autumnal equinoxes.

From National Geographic

In an email, Dr. Nixon said his team was particularly excited to see what would happen in 2025, when Titan would reach its northern autumnal equinox.

From New York Times

This year, the warm days have not only surpassed the September 22 autumnal equinox but are expected to continue through Oct.

From Seattle Times