solar flare

noun

: a sudden temporary outburst of energy from a small area of the sun's surface

called also flare

Examples of solar flare 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.
In March 2024, NASA’s Perseverance Mars rover imaged visible-light auroras for the first time during a major solar flare and coronal mass ejection. Laura Baisas, Popular Science, 10 Sep. 2025 Further solar flares from these sunspot groups will remain visible to Earth for another week. Ryan French, Space.com, 9 Sep. 2025 Around the time of this flip, solar activity gradually ramps up, causing more solar eruptions like solar flares and coronal mass ejections. Maria Azzurra Volpe, MSNBC Newsweek, 8 Sep. 2025 Key Background Solar events like solar flares and coronal mass ejections are largely responsible for producing the northern lights. Ty Roush, Forbes.com, 6 Sep. 2025 See All Example Sentences for solar flare

Word History

First Known Use

1938, in the meaning defined above

Time Traveler
The first known use of solar flare was in 1938

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Cite this Entry

“Solar flare.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/solar%20flare. Accessed 14 Sep. 2025.

Kids Definition

solar flare

noun
: a sudden temporary outburst of energy from a small area of the sun's surface

More from Merriam-Webster on solar flare

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