electromagnet has definitions from the field of physics
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[ noun ] (physics) a temporary magnet made by coiling wire around an iron core; when current flows in the coil the iron becomes a magnet

Used in print

(James A. Ibers et al., "Proton magnetic resonance...)

The magnetic_resonance absorption was detected by employing a Varian model **f broad line spectrometer and the associated 12 - inch electromagnet system .

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