ferromagnets

/ˌfɛroʊˈmæɡnɪts/
noun
  1. Materials that exhibit strong magnetism, such as iron, nickel, and cobalt, and can be made into permanent magnets.
    • Many speakers contain ferromagnets to convert electrical signals into sound.
    • The lab keeps samples of ferromagnets for student experiments.
    • Ferromagnets are used in electric motors and generators.
Synonyms