remanence

/ˈrɛmənəns/
noun
  1. The ability of a material, especially a magnet, to stay magnetized after the external magnetic field is removed.
    • The hard drive's data was preserved due to the remanence of its magnetic coating.
    • Engineers measure remanence to determine how well a material holds its magnetic charge.
    • The remanence of the steel made it useful for permanent magnets.
Synonyms
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