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sunspot
noun
sun·spot
| \ ˈsən-ˌspät
\
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Definition of sunspot
: 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
When solar activity spikes, flares, sunspots and solar storms can impact satellites stationed near Earth and space weather. — Fox News, "Scientists discover 'plasma tsunamis' are responsible for sunspots," 25 July 2019 Sunday Sun-day Sundae includes short talks about the Sun, tours of our historic buildings, and safe viewing of sunspots and solar flares from an 1845 telescope (weather permitting). — Luann Gibbs, Cincinnati.com, "Things to do in Cincinnati this week: July 29-Aug. 4," 29 July 2019 In the early 20th century, astronomer Andrew Ellicott Douglass began studying trees in the American Southwest to learn more about how sunspots affected climate on Earth. — Erin Blakemore, National Geographic, "How are tree rings used to help date an archaeological site?," 8 July 2019 Clusters of sunspots signal increasing magnetic activity. — Stephen Ornes, Discover Magazine, "Our Sun, the Still-mysterious Star That Gives Us Life," 12 June 2019 Learn how to locate, observe and understand sunspots, solar flares and our relationship with the cosmos. — Ramona Sentinel, "Two nonprofits to stage AnomaR arts festival," 27 June 2019 Due to a lack of sunspots and a quiet time in the solar cycle, the corona won’t be quite as dynamic as last time – but an elegant double-petal pattern should still gracefully emerge. — The Washington Post, The Mercury News, "A 6,000-mile path will experience a total solar eclipse next week. The display won’t be easy to see.," 26 June 2019 This event will have short talks about the sun, tours of the buildings, and safe viewing of sunspots and solar flares from their 1845 telescope. — Briana Rice, Cincinnati.com, "5 Father's Day things to do with your dad in Cincinnati," 14 June 2019 Buenos Aires, Argentina Buenos Aires is popular as a winter sunspot for Northern Hemisphere types, but the muggy Porteño summer can make exploring the city unappealing. — Cnt Editors, Condé Nast Traveler, "30 Places to Travel This Spring," 12 Feb. 2018These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sunspot.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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More Definitions for sunspot
sunspot
noun
English Language Learners Definition of sunspot
astronomy
: a dark spot that sometimes appears on the surface of the sun
See the full definition for sunspot in the English Language Learners Dictionary
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