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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
This region actually encapsulates our entire solar system, and is formed as a result of solar wind particles streaming from the sun and eventually pressing into the interstellar medium.
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Monisha Ravisetti, Space.com, 5 Feb. 2025
The solar wind escaping from the aforementioned coronal hole is moving at a velocity of more than 310 miles per second, expected to reach Earth on Friday which could trigger a minor geomagnetic storm (G1).
—
Skyler Caruso, People.com, 31 Jan. 2025
Generated by the churning molten metals in Earth’s core, the magnetosphere shields the planet from harmful solar radiation and keeps solar winds from stripping away Earth’s atmosphere.
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Mindy Weisberger, CNN, 21 Jan. 2025
The Parker Solar Probe was launched Aug. 12, 2018 with the mission of coming within 4 million miles of the sun's surface to study the formation of the solar wind.
—
Eric Lagatta, USA TODAY, 27 Dec. 2024
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Word History
First Known Use
1958, in the meaning defined above
Dictionary Entries Near solar wind
Cite this Entry
“Solar wind.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/solar%20wind. Accessed 16 Feb. 2025.
Kids Definition
solar wind
noun
: the continuous radiation of charged particles from the sun's surface
More from Merriam-Webster on solar wind
Britannica.com: Encyclopedia article about solar wind
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