[ koh-er-siv-i-tee ]
/ ˌkoʊ ərˈsɪv ɪ ti /

noun Electricity.

the magnetic intensity needed to reduce to zero the magnetic flux density of a fully magnetized magnetic specimen or to demagnetize a magnet.

Origin of coercivity

First recorded in 1895–1900; coercive + -ity
Also called coercive force. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for coercive force (1 of 2)

coercive force


a measure of the magnetization of a ferromagnetic material as expressed by the external magnetic field strength necessary to demagnetize it. Measured in amperes per metreCompare coercivity

British Dictionary definitions for coercive force (2 of 2)


/ (ˌkəʊɜːˈsɪvɪtɪ) /


the magnetic-field strength necessary to demagnetize a ferromagnetic material that is magnetized to saturation. It is measured in amperes per metreCompare coercive force
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

Science definitions for coercive force


[ kō′ər-sĭvĭ-tē ]

The magnetic flux density needed to reduce the magnetization of a material (especially a ferromagnetic material) from complete saturation to zero. Coercivity is measured in teslas. Compare remanence.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.