magnetic storm

noun
Updated on: 19 Apr 2018

Definition of magnetic storm

: a marked temporary disturbance of the earth's magnetic field held to be related to sunspots

Recent Examples of magnetic storm from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'magnetic storm.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of magnetic storm

circa 1855


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