solar wind

noun

: plasma continuously ejected from the sun's surface into and through interplanetary space

Examples of solar wind 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.
According to forecasters from the U.S. National Oceanic and Atmospheric Administration (NOAA), a G2-class geomagnetic storm is forecast for April 22 as strong solar winds buffet Earth's magnetic field. Ross Rosenfeld, MSNBC Newsweek, 22 Apr. 2025 X-ray radiation levels in the chamber were similar to those on the surface of Mars when there is strong solar activity, though solar flares and fluctuations in solar wind make actual Martian levels unpredictable. Elizabeth Rayne, ArsTechnica, 19 Apr. 2025 Solar flares travel at light speed and fuel the solar wind throughout the solar system but do not cause aurora. Jamie Carter, Forbes.com, 15 Apr. 2025 The Northern Lights may be visible in northern skies from 11 northerly U.S. states on Tuesday, March 25, with turbulent solar wind expected to arrive at Earth. Jamie Carter, Forbes, 25 Mar. 2025 See All Example Sentences for solar wind

Word History

First Known Use

1958, in the meaning defined above

Time Traveler
The first known use of solar wind was in 1958

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Cite this Entry

“Solar wind.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/solar%20wind. Accessed 29 Apr. 2025.

Kids Definition

solar wind

noun
: the continuous radiation of charged particles from the sun's surface

More from Merriam-Webster on solar wind

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