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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
As the sun geared up to spit a powerful solar flare into space, NASA scientists snapped huge loops of plasma leaping from the sun's surface.
—Michael Gfoeller and David H. Rundell, Newsweek, 16 Jan. 2025
What if there was a solar flare and the whole car died?
—Nnedi Okorafor, WIRED, 14 Jan. 2025
The increase in the frequency and size of the solar flares correlates to the sun's progression toward solar maximum, the peak of activity in its 11-year cycle.
—Stefanie Waldek, Space.com, 13 Jan. 2025
The strong storms and frequent aurora displays continued throughout the year, culminating in the most powerful solar flare of the solar cycle, classified by NASA as an X9.0-level flare (X is the highest letter on the solar flare measurement scale, indicating the strongest class of flares).
—Conor Murray, Forbes, 6 Jan. 2025
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Word History
First Known Use
1938, in the meaning defined above
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Cite this Entry
“Solar flare.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/solar%20flare. Accessed 31 Jan. 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
Nglish: Translation of solar flare for Spanish Speakers
Britannica.com: Encyclopedia article about solar flare
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