demagnetized

/D IH0 M AE1 G N IH0 T AY0 Z D/
verb
  1. 1

    To make something nonmagnetic by removing its magnetic properties.

  2. 2

    To erase the contents of a magnetic storage device.

adjective
  1. 1

    From which all magnetism has been removed.

Source: https://en.wiktionary.org/wiki/demagnetize, https://en.wiktionary.org/wiki/demagnetized