coercivityn.
/kəʊəːˈsɪvɪti/ Magnetism.
The property of retaining coercive force; the value of the coercive force of a magnetized substance.
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coercivity1898
1898 J. A. Fleming Magnets & Electr. Currents i. 16 The ability to retain the magnetic state with varying degrees of power against mechanical shocks or reversed magnetic force is called the Coercive Power of the body, or its Coercivity.
1902 Encycl. Brit. XXVIII. 115/2 Steel containing tungsten possesses a large coercivity.
1910 H. M. Hobart Dict. Electr. Engin. I. 106/1 Coercivity, the reverse magnetic field required to reduce a mass of iron which has been highly magnetised, to a state of zero magnetisation.
1933 Radio Engin. Handbk. 34 Electromagnetic Structures. In this type of structure the magnetic material is usually very soft; its coercivity is very low.
1947 Electronic Engin. 19 379 One type of wire..has..a coercivity of 300 oersteds.
1960 Photogr. Jrnl. Aug. 232/2 Coercivity..is the ease with which a track can be magnetized or demagnetized.
This entry has not yet been fully updated (first published 1972; most recently modified version published online September 2018).
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n.1898