[mag-nee-toh-strik-shuh n]

Origin of magnetostriction

First recorded in 1895–1900; magneto- + (con)striction
Related formsmag·ne·to·stric·tive [mag-nee-tuh-strik-tiv] /mægˌni təˈstrɪk tɪv/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for magnetostriction


  1. a change in dimensions of a ferromagnetic material that is subjected to a magnetic field
Derived Formsmagnetostrictive, adjective

Word Origin for magnetostriction

C19: from magneto- + constriction
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

magnetostriction in Science


  1. The change in shape and density of a substance, especially a ferromagnetic substance, when exposed to a magnetic field. The change depends on the direction and strength of the magnetic field. Rapid, alternating magnetostriction causes the iron cores of household transformers, which are subject to a changing magnetic field, to hum or buzz.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.