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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
The blue circles represent solar flares captured by the orbiter’s Spectrometer/Telescope for Imaging X-rays instrument.
—Amanda Kooser, Forbes, 3 Jan. 2025
The sun also released bright flashes of light, called solar flares.
—Stephen Ornes, Discover Magazine, 2 Jan. 2025
They are caused by magnetic storms that have been triggered by solar activity, such as solar flares or coronal mass ejections.
—Chad Murphy, The Enquirer, 31 Dec. 2024
Historically, large solar flares and geomagnetic storms are more common in the declining phase after solar maximum.
—Ryan French, Space.com, 27 Dec. 2024
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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 20 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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