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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The microscopic lens successfully mapped the intense magnetic fields inside active sunspots.
—
Mrigakshi Dixit, Interesting Engineering, 10 June 2026
On Wednesday, a very large and active sunspot erupted several times, causing three solar flares and sending waves of CMEs into space, headed toward Earth.
—Terry Eliasen, CBS News, 4 June 2026
The culprit behind all three eruptions from the sun is Earth-facing sunspot region 4455.
—Daisy Dobrijevic, Space.com, 3 June 2026
At the same time, scientists are continuing to monitor several active sunspot regions rotating across the sun, along with the possibility of isolated M-class solar flares in the days ahead.
—Valerie Mesa, PEOPLE, 28 May 2026
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Mrigakshi Dixit, Interesting Engineering, 10 June 2026
On Wednesday, a very large and active sunspot erupted several times, causing three solar flares and sending waves of CMEs into space, headed toward Earth.
—Terry Eliasen, CBS News, 4 June 2026
The culprit behind all three eruptions from the sun is Earth-facing sunspot region 4455.
—Daisy Dobrijevic, Space.com, 3 June 2026
At the same time, scientists are continuing to monitor several active sunspot regions rotating across the sun, along with the possibility of isolated M-class solar flares in the days ahead.
—Valerie Mesa, PEOPLE, 28 May 2026
See All Example Sentences for sunspot
Cite this Entry
“Sunspot.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sunspot. Accessed 18 Jun. 2026.
Copy CitationKids Definition
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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