coronal mass ejection
noun
: a tremendous outburst of energy from the corona of the sun that can cause disruptions in the earth's geomagnetic field
As they had for the January eruption, the researchers relied on an armada of spacecraft to track the disturbance, known as a coronal mass ejection because it originates in the sun's outer atmosphere, or corona.—
R. Cowen
—abbreviation CME
compare solar flare
R. CowenExamples of coronal mass ejection in a Sentence
Recent Examples on the Web
The pink and purple beams, created by a series of coronal mass ejections from the sun that produced geomagnetic storms triggering auroras, were visible across the state by those who found a dark spot and looked at the right time.
—Shelby Slade, The Arizona Republic, 3 June 2024
The Northern Lights may be visible again throughout Colorado on Sunday night if another coronal mass ejection—a burst of plasma and magnetic field from the Sun—occurs as expected this evening, according to National Oceanic and Atmospheric Administration official Shawn Dahl.
—Julianna O'Clair, The Denver Post, 12 May 2024
Several more intense coronal mass ejections are still anticipated to reach the Earth's outer atmosphere later Sunday, and could be visible over much of the northern half of the country.
—Drake Bentley, Journal Sentinel, 12 May 2024
The solar flares, which began Wednesday around 5 a.m. ET, are associated with coronal mass ejections (CMEs) directed toward Earth.
—Mary Kekatos, ABC News, 10 May 2024
See all Example Sentences for coronal mass ejection 
Shelby Slade, The Arizona Republic, 3 June 2024
The Northern Lights may be visible again throughout Colorado on Sunday night if another coronal mass ejection—a burst of plasma and magnetic field from the Sun—occurs as expected this evening, according to National Oceanic and Atmospheric Administration official Shawn Dahl.
—Julianna O'Clair, The Denver Post, 12 May 2024
Several more intense coronal mass ejections are still anticipated to reach the Earth's outer atmosphere later Sunday, and could be visible over much of the northern half of the country.
—Drake Bentley, Journal Sentinel, 12 May 2024
The solar flares, which began Wednesday around 5 a.m. ET, are associated with coronal mass ejections (CMEs) directed toward Earth.
—Mary Kekatos, ABC News, 10 May 2024
See all Example Sentences for coronal mass ejection
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“Coronal mass ejection.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coronal%20mass%20ejection. Accessed 4 Jul. 2024.
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