sunspot
noun
sun·spot
ˈsən-ˌspät 
: any of the dark spots that appear at times on the sun's surface and are usually visible only through a telescope
Examples of sunspot in a Sentence
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In addition to softening skin, tocopherol fends off free radicals found in the environment, the likes of which contribute to sunspots, sagging, and other signs of aging.
—
Sophie Wirt, InStyle, 5 Jan. 2026
The peak of this solar cycle — called solar maximum — is when sunspots, solar flares and coronal mass ejections (CMEs) are the most frequent.
—Ryan French, Space.com, 18 Dec. 2025
Since then, based on what’s actually happened on the sun, Mark Miesch of NOAA has given monthly updates to the panel’s forecast—whose timing was off and whose sunspot-activity prediction had proven too low.
—Sarah Scoles, Scientific American, 10 Dec. 2025
Scientists may see more space weather activity between December 1 and December 5, NOAA said, as the sun's newly emerging sunspot region rotates to face the Earth.
—Kerry Breen, CBS News, 2 Dec. 2025
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Sophie Wirt, InStyle, 5 Jan. 2026
The peak of this solar cycle — called solar maximum — is when sunspots, solar flares and coronal mass ejections (CMEs) are the most frequent.
—Ryan French, Space.com, 18 Dec. 2025
Since then, based on what’s actually happened on the sun, Mark Miesch of NOAA has given monthly updates to the panel’s forecast—whose timing was off and whose sunspot-activity prediction had proven too low.
—Sarah Scoles, Scientific American, 10 Dec. 2025
Scientists may see more space weather activity between December 1 and December 5, NOAA said, as the sun's newly emerging sunspot region rotates to face the Earth.
—Kerry Breen, CBS News, 2 Dec. 2025
See All Example Sentences for sunspot
Cite this Entry
“Sunspot.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sunspot. Accessed 10 Jan. 2026.
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sunspot
noun
sun·spot
-ˌspät
: one of the dark spots that appear from time to time on the sun's surface and are usually visible only through a telescope
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