The hobby of searching outdoor waters for ferromagnetic objects by means of a strong magnet.

Alternative form of electromagnet

A magnet fed to cattle (where it remains permanently in the rumen or reticulum) to attract any swallowed metal away from the tissues and reduce the risk of hardware disease.

(rail transport) A magnet incorporated in railway track for various purposes.

(electronics, computing) a strip of magnetic material on which data is stored for later retrieval and reading by an electronic device

plural of magnetic strip

(physics) A magnetic confinement device used in fusion power to trap high-temperature plasma using magnetic fields.

plural of magnetic trap

(physics) A magnetic mirror.

plural of magnetic mirror