/ Dictionary / Index M magnetic storm: Meaning and Definition of Find definitions for: magnet'ic storm' Pronunciation: [key] a temporary disturbance of the earth's magnetic field, induced by radiation and streams of charged particles from the sun. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. magnetic star magnetic strip Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language