sunspot

noun
sun·spot | \ ˈsən-ˌspät \

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

Sometimes sunspots can create solar flares or eruptions in large regions of magnetic activity. Susan Selasky And Emma Tomsich, Detroit Free Press, "Strawberry moon, Saturn to light up sky tonight," 27 June 2018 But this is no sepia print: Purples, blues, and reds soak the canvas; circles pulse woozily in the background like sunspots. Cate Mcquaid, BostonGlobe.com, "At PEM, T.C. Cannon’s paintings exult and reproach," 21 Mar. 2018 But Cohen, who was also not involved in the study, points out the shift does correspond with observed motions of sunspots. Shannon Hall, Scientific American, "The Sun Is Spitting Out Strange Patterns of Gamma Rays—and No One Knows Why," 28 Mar. 2018 For dense, discrete sunspots, on the other hand, lasers are magic. Jolene Edgar, Allure, "A Dermatologist's Guide to In-Office Hyperpigmentation Treatments," 9 Mar. 2018 The previous day, Lucy had located a sunspot on the carpet in the bedroom and dragged her throbbing body to the center of it. Paul Daugherty, Cincinnati.com, "DOC: Goodbye, Lucy. You were never less than loved.," 20 Jan. 2018 Not a cloud crossed the powder blue sky, allowing a spectacular view of a surprisingly large sunspot group followed by several ruby red prominences during totality. Bill Andrews, Discover Magazine, "In the Moon's Shadow, America Looks Up," 29 Dec. 2017 Prettier skin today and protection against wrinkles and sunspots tomorrow? Deanna Pai, Redbook, "6 Tiny Skincare Tweaks for Crazy-Gorgeous Skin," 25 Apr. 2017 Using this process, scientists have been able to determine how much hydrogen is left inside the Sun to convert into helium, how fast its different layers rotate, and even whether there are sunspots on the far side of the Sun’s surface. Avery Thompson, Popular Mechanics, "Why Stars Sound Like Ringing Bells," 12 Jan. 2018

These 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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First Known Use of sunspot

1676, in the meaning defined above

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Statistics for sunspot

Last Updated

16 Aug 2018

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Time Traveler for sunspot

The first known use of sunspot was in 1676

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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

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