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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The missions will each focus on different effects of the solar wind and space weather, from their origins at the Sun to their farthest reaches billions of miles away at the edge of our Solar System. Eric Berger, ArsTechnica, 5 Sep. 2025 When cosmic rays — including, in part, plain old protons from the Sun’s solar wind — strike the Moon, the recoil from those heavy elements knocks them into an excited state. Ethan Siegel, Big Think, 4 Sep. 2025 The northern lights, or aurora borealis, are waves of light created when the solar wind strikes the atmosphere, creating a display of moving lights in the night sky. Jenna Prestininzi, Freep.com, 3 Sep. 2025 Another study, published in the journal Nature Geoscience, highlights how Bennu's airless surface has been shaped by space weathering, including tiny micrometeorite impacts and the solar wind. Sharmila Kuthunur, Space.com, 2 Sep. 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

Browse Nearby Words

Cite this Entry

“Solar wind.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/solar%20wind. Accessed 9 Sep. 2025.

Kids Definition

solar wind

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

More from Merriam-Webster on solar wind

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!