supermoon

noun

su·​per·​moon ˈsü-pər-ˌmün How to pronounce supermoon (audio)
plural supermoons
: a full moon occurring when the moon is at or near the closest point in its orbit
A supermoon … occurs when the moon is full within 24 hours of being at its closest point to the Earth in its orbit.Kaleigh Rogers
Visible supermoons appear 14% bigger and 30% brighter than full moons that occur at the farthest point in the moon's orbit.Karen Hao
As the first and only supermoon of 2017 rose high into the sky this Sunday (Dec. 3), astrophotographers seized the opportunity to shoot the moon in all its bigger-than-usual glory.Hanneke Weitering

Examples of supermoon in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The upcoming hunter's moon is also the first full moon of fall and the closest supermoon of the year, according to Space.com. Haadiza Ogwude, The Enquirer, 18 Oct. 2024 The hunter’s supermoon will be visible Thursday evening through Friday morning, according to NASA. Cailey Gleeson, Journal Sentinel, 17 Oct. 2024 The third supermoon of 2024 (though not the last — there’s also one in January 2026). Jamie Carter, Forbes, 22 Dec. 2024 Under the glow of October’s supermoon—the brightest of the year—the Umbrian countryside takes on a mystical quality. Julia Eskins, Vogue, 17 Dec. 2024 See all Example Sentences for supermoon 

Word History

First Known Use

1979, in the meaning defined above

Time Traveler
The first known use of supermoon was in 1979

Dictionary Entries Near supermoon

Cite this Entry

“Supermoon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/supermoon. Accessed 7 Jan. 2025.

Last Updated: - Updated example sentences
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