magnetization

/ˌmæɡnətəˈzeɪʃən/
noun
  1. The process of making something magnetic, or the state of being magnetic.
    • The magnetization of the needle in a compass points toward the North Pole.
    • Scientists studied the magnetization of rocks to learn about Earth's ancient magnetic field.
    • The magnetization of the metal strip allowed it to pick up paperclips.