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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This protection doesn’t cover everything, however; lighter species of gases — including water vapor — are constantly stripped away by the solar wind, and seen in Venus’s magnetotail. Big Think, 5 Feb. 2026 The strong solar gravity and the pressure of the solar wind, or constant stream of particles streaming off our sun, fragmented the comet into several chunks. Elizabeth Howell, Space.com, 30 Jan. 2026 The forecast is for a minor G1 geomagnetic storm, the first level on NOAA’s five-level Space Weather Scale, as a turbulent solar wind interacts with Earth’s magnetic field. Jamie Carter, Forbes.com, 27 Jan. 2026 While the timing can shift hour by hour, the best chances typically unfold after dark, when Earth rotates into the solar wind’s path. Valerie Mesa, PEOPLE, 27 Jan. 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 14 Feb. 2026.

Kids Definition

solar wind

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

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