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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Psyche’s magnetometer may have detected a signature of the solar wind interacting with Mars’ upper atmosphere or its remnant magnetic field, and its spectrometers were tuned to measure the chemical composition of the Martian surface underneath the spacecraft’s flight path. Stephen Clark, ArsTechnica, 20 May 2026 Remember to also keep tabs on real-time conditions using NOAA's 30-minute aurora forecast and space-weather apps that track solar wind and magnetic field changes. Valerie Mesa, PEOPLE, 18 May 2026 Further enhancement could also come from the lingering effects of the fast solar wind stream from a coronal hole that has been buffeting Earth in recent days. Daisy Dobrijevic, Space.com, 18 May 2026 To check visibility in real time, use NOAA’s 30-minute aurora forecast or download apps such as Aurora Now, My Aurora Forecast or Glendale Aurora for up-to-the-minute alerts and live solar wind data. Jamie Carter, Forbes.com, 16 May 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 25 May. 2026.

Kids Definition

solar wind

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

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