/ Dictionary / Index M magnetostriction: Meaning and Definition of Find definitions for: mag•ne•to•stric•tion Pronunciation: (mag-nē"tō-strik'shun), [key] — n. Physics. a change in dimensions exhibited by ferromagnetic materials when subjected to a magnetic field. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. magnetostatics magnetotail Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language