sunspot

noun

sun·​spot ˈsən-ˌspät How to pronounce sunspot (audio)
: 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

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.
This latest round of solar eruptions includes several CMEs from an active sunspot cluster. Briana Waxman, CNN Money, 12 Nov. 2025 These outbursts send radiation and charged particles hurling into space and can disrupt communications on Earth if the flare erupts from an Earth-facing sunspot. Daisy Dobrijevic, Space.com, 10 Nov. 2025 Maunder soon found that even big sunspots did not always coincide with magnetic storms. Literary Hub, 27 Oct. 2025 Singing onstage at New York’s Beacon Theatre or puttering around her house in Brittany, Birkin appears shorter and stouter, with thin lips and sunspots. Anahid Nersessian, New Yorker, 15 Sep. 2025 See All Example Sentences for sunspot

Word History

First Known Use

1676, in the meaning defined above

Time Traveler
The first known use of sunspot was in 1676

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Cite this Entry

“Sunspot.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sunspot. Accessed 16 Nov. 2025.

Kids Definition

sunspot

noun
sun·​spot -ˌspät How to pronounce sunspot (audio)
: one of the dark spots that appear from time to time on the sun's surface and are usually visible only through a telescope

More from Merriam-Webster on sunspot

Last Updated: - Updated example sentences
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