Last Updated
：2025/11/20
ferromagnetism
（ plural ）
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(physics) The phenomenon whereby certain substances can become permanent magnets when subjected to a magnetic field.
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ferromagnetism
Ferromagnetism in iron allows it to become magnetized and retain a permanent magnetic moment after the external field is removed.
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Ferromagnetism in iron allows it to become magnetized and retain a permanent magnetic moment after the external field is removed.
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