supermoon
noun
su·per·moon
ˈsü-pər-ˌmün 
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
Kaleigh RogersVisible supermoons appear 14% bigger and 30% brighter than full moons that occur at the farthest point in the moon's orbit.—Karen Hao
Karen HaoAs 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
Hanneke WeiteringExamples of supermoon in a Sentence
Recent Examples on the Web
Unfortunately, a full supermoon on the peak of Oct. 8th (30 percent brighter than your average full moon) will likely block all but the most spectacular meteors.
—Michael D'estries, Travel + Leisure, 17 Mar. 2025
But this year's full Harvest Moon, which also just so happened to be an exceptionally large and bright supermoon, another phenomenon occurred: a partial lunar eclipse.
—Eric Lagatta, USA TODAY, 16 Dec. 2024
With the sky lit up with a supermoon over the stadium and the game remaining 11-6, Mets closer Edwin Diaz came in to face three of the best Dodger hitters - Pages, Ohtani and Betts.
—Jacob Lev, CNN, 18 Oct. 2024
However, the concept is the same as a full supermoon.
—Jamie Carter, Forbes, 27 Feb. 2025
See All Example Sentences for supermoon
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.
Michael D'estries, Travel + Leisure, 17 Mar. 2025
But this year's full Harvest Moon, which also just so happened to be an exceptionally large and bright supermoon, another phenomenon occurred: a partial lunar eclipse.
—Eric Lagatta, USA TODAY, 16 Dec. 2024
With the sky lit up with a supermoon over the stadium and the game remaining 11-6, Mets closer Edwin Diaz came in to face three of the best Dodger hitters - Pages, Ohtani and Betts.
—Jacob Lev, CNN, 18 Oct. 2024
However, the concept is the same as a full supermoon.
—Jamie Carter, Forbes, 27 Feb. 2025
See All Example Sentences for supermoon
Cite this Entry
“Supermoon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/supermoon. Accessed 14 Apr. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share