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
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On September 1, 1859, Richard Carrington, an English amateur astronomer, witnessed an explosion of light from the sun while observing sunspots. Sean Mowbray, Discover Magazine, 26 May 2025 In turn, the images reveal intricate details of sunspot groups, plasma flows and magnetic field structures that trigger solar flares. Samantha Mathewson, Space.com, 25 May 2025 There’s the Levi’s x Sacai denim jacket featuring the same custom sunspot gold shanks based on vintage Levi’s hardware, the Levi x Sacai Denimx Matelasse twill reversible blouson, and two variations of the Reversible Blouson, available in indigo x black or blue x khaki nylon exteriors. Lisa Lockwood, Footwear News, 19 May 2025 On Tuesday, a sunspot named AR4086 shot out an X1.2 solar flare. Margherita Bassi, Smithsonian Magazine, 16 May 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 13 Jun. 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

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