Webster's Revised Unabridged Dictionary · 1913

magnetic storm

magnetic storm , noun

A sudden disturbance of the earth's magnetic field; caused by emission of particles from the sun.

Text from the public-domain GNU Collaborative International Dictionary of English, derived from Webster's Revised Unabridged Dictionary (1913). Definitions marked with were added by later GCIDE contributors and are not in the original 1913 edition.

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