: 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
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During solar minimum, when the sun has few or no sunspots, the corona tends to look more uniform and more symmetrical. Jamie Carter, Space.com, 9 Aug. 2026 The sun is in its solar cycle 25 which passed its peak activity in 2024, but sunspot activity remains relatively elevated, according to the Almanac. Sarah Moore, USA Today, 6 Aug. 2026 To see them in the solar photosphere, the team pushed DKIST to its limits, zooming in on the outskirts of a sunspot and revealing dozens. Lee Billings, Scientific American, 5 Aug. 2026 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, 1 July 2026 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 18 Aug. 2026.

Kids Definition

: 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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