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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Lunar water may have also originated from solar wind implantation, in which hydrogen ions in solar wind hit the Moon and generate OH or H20 in the soil. Jack Knudson, Discover Magazine, 17 July 2025 The agency said the Kp index could reach nearly four early Friday morning, potentially pulling the northern lights farther south, though NOAA expects no geomagnetic storms or significant transient or recurrent solar winds to disrupt the Earth’s geomagnetic field. Ty Roush, Forbes.com, 17 July 2025 The satellites were constructed by fellow rocket launch provider Rocket Lab and will study how solar winds interacts with Mars’ magnetic fields. Richard Tribou, The Orlando Sentinel, 17 July 2025 This is primarily because of Titan's cool temperature and its distance from the sun, which prevents its atmosphere from being stripped by the solar wind. Robert Lea, Space.com, 15 July 2025 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 19 Aug. 2025.

Kids Definition

solar wind

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

More from Merriam-Webster on solar wind

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