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
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The best viewing window is expected late Friday night, April 10, through the early hours of Saturday, April 11, when geomagnetic activity linked to the incoming solar wind stream is forecast to peak. Valerie Mesa, PEOPLE, 10 Apr. 2026 According to the latest forecast from the National Oceanic and Atmospheric Administration's Space Weather Prediction Center (SWPC), a minor (G1) geomagnetic storm sparked by fast-moving solar winds could make auroras visible across as many as 10 northern states. Michele Laufik, Martha Stewart, 10 Apr. 2026 Using this to simulate the shape of Saturn's magnetic field, the team found that the way the solar wind interacts with the ringed planet's magnetosphere is similar to interactions with the magnetic field of its fellow gas giant, Jupiter. Robert Lea, Space.com, 1 Apr. 2026 Here's everything to know about SETI's new research, and how solar winds and other factors could be interfering with alien messages. Eric Lagatta, USA Today, 11 Mar. 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 15 Apr. 2026.

Kids Definition

solar wind

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

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