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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Should conditions be favorable, the northern lights could become visible across high-latitude regions such as Alaska, northern Canada, northern Scotland and northern Scandinavia, with the best chances tonight and Saturday night while the solar wind stream is strongest. Daisy Dobrijevic, Space.com, 13 Mar. 2026 The belts also have an important job in shielding Earth from cosmic radiation, solar storms and solar wind that can be harmful to humans and damage technology. Eric Lagatta, USA Today, 10 Mar. 2026 Most of the time, the Earth's and sun's magnetic fields aren't aligned, meaning that, as solar wind comes across Earth, much of it is deflected away from the planet. Michele Laufik, Martha Stewart, 10 Mar. 2026 During this time, the north-pointing magnetic field from Earth and the south-pointing magnetic field from the sun -- which is carried toward Earth by solar wind -- can cancel each other out. ABC News, 6 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

Browse Nearby Words

Cite this Entry

“Solar wind.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/solar%20wind. Accessed 16 Mar. 2026.

Kids Definition

solar wind

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

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