coronal mass ejection
Definition of coronal mass ejection
: 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
First Known Use of coronal mass ejection
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