[mag-nee-toh-strik-shuh
n] 
| a change in dimensions exhibited by ferromagnetic materials when subjected to a magnetic field. |
[mag-nee-tuh-strik-tiv] , adjective | mag·ne·to·stric·tion (māg-nē'tō-strĭk'shən) n. Deformation of a ferromagnetic material subjected to a magnetic field. [magneto- + (con)striction.] mag·ne'to·stric'tive adj. |
| magnetostriction (māg-nē'tō-rĭ-strĭk'shən) Pronunciation Key
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. |