(medicine) A form of magnetic resonance imaging that records the flow of blood to areas of the brain when the patient is undertaking a specific neural activity.

plural of rare earth magnet

plural of single-molecule magnet

(mineralogy) A magnetic mineral, Fe₃O₄, one of the primary ores of iron. It has also been called lodestone.

A small magnetic dynamo, especially one that provides power to the spark plugs of a small internal combustion engine (now mostly used in aircraft).

(physics) The comet-shaped region around Earth or another planet in which charged particles are trapped or deflected. Shaped by the solar wind and the planet's magnetic field.

(astronomy) A neutron star or pulsar with an extremely powerful magnetic field, especially those on which starquakes occur, thought to be the source of some gamma-ray bursts.

One versed in magnetism; magnetician.

One versed in the science of magnetism; a magnetist.

Quality of being magnetic.