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
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According to the National Oceanic and Atmospheric Administration, some of this solar activity includes solar flares. Greta Cross, USA TODAY, 15 Feb. 2025 These three primary areas of focus highlight the types of impacts a solar flare can have on our environment, with the scales also providing information on the likelihood of a certain level occurring and the intensity of each category, which is rated on a scale of 1 to 5. Meredith Garofalo, Space.com, 9 Feb. 2025 Northern lights, also known as Aurora Borealis, are caused by magnetic storms triggered by solar activity, like solar flares (explosions on the sun) or coronal mass ejections (ejected gas bubbles). Skyler Caruso, People.com, 31 Jan. 2025 While technical systems are expected to experience only moderate effects during the storm, the solar flare that triggered these CMEs caused a brief shortwave radio blackout over parts of Africa and the South Atlantic Ocean shortly after erupting, according to SpaceWeather.com. Andy Biggs, Newsweek, 24 Dec. 2024 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

Dictionary Entries Near solar flare

Cite this Entry

“Solar flare.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/solar%20flare. Accessed 22 Feb. 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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