solar wind

noun

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

Examples of solar wind in a Sentence

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However, high-speed solar wind from a coronal hole could deflect the energy, the SWPC notes. Michele Laufik, Martha Stewart, 4 June 2026 Equipped with a sophisticated suite of instruments, the probe was designed to study the Martian atmosphere to learn more about how it is eroded, or blown away and thinned out by particles in the solar wind. William Harwood, CBS News, 3 June 2026 Remember to also keep tabs on real-time conditions using NOAA’s 30-minute aurora forecast and space-weather apps that track solar wind and magnetic field changes. Valerie Mesa, PEOPLE, 1 June 2026 Mars, however, lost most of its global magnetic field billions of years ago and today possesses only a much weaker, patchier magnetic environment formed when the solar wind interacts directly with the planet’s thin upper atmosphere. Sharmila Kuthunur, Space.com, 26 May 2026 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 11 Jun. 2026.

Kids Definition

solar wind

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

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