magnetic storm
Americannoun
noun
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A disturbance or fluctuation in the Earth's outer magnetosphere, usually caused by streams of charged particles (plasma) given off by solar flares. The entry of large amounts of plasma into the upper atmosphere results in intense auroral displays and other magnetic phenomena in the polar regions of the Earth.
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See also aurora
Discover More
During a magnetic storm, radio reception can become very difficult.
Etymology
Origin of magnetic storm
First recorded in 1855–60
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Colorful auroras appeared around Japan's Honshu and Hokkaido islands on May 11, 2024, sparked by an intense magnetic storm.
From Science Daily ● Dec. 5, 2024
The effects of the flare, a violent magnetic storm and a radio blackout, were observed from the South Pole to the Arctic and all around the equator.
From Time Magazine Archive
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One day last week a violent "magnetic storm" or disturbance of the earth's magnetic field broke out.
From Time Magazine Archive
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Striking the upper levels of the earth's atmosphere, they excited oxygen and nitrogen atoms into luminescence, also set off a magnetic storm.
From Time Magazine Archive
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From the 28th of August to the 4th of September, 1859, a magnetic storm of unparalleled intensity, extent, and duration, was in progress over the entire globe.
From A Popular History of Astronomy During the Nineteenth Century Fourth Edition by Agnes M. (Agnes Mary) Clerke
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