deperm

/diːˈpɜrm/
verb
  1. To remove the permanent magnetic field from (a ship or other object), especially to protect against magnetic mines or detection.
    • The navy deperms its warships before they enter dangerous waters.
    • Technicians deperm the submarine to make it harder to detect.
    • They deperm the hull using special electrical cables.
Antonyms
What does "deperm" mean? | whatsthatwordmean | whatsthatwordmean