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ring magnet
noun
- a ring-shaped permanent magnet.
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Word History and Origins
Origin of ring magnet1
First recorded in 1845–50
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Example Sentences
A copper disc, when inserted within the air gap of the ring magnet, was brought into rapid rotation.
From Project Gutenberg
Among them was one in which he attached to his oscillator a ring magnet with a small air gap between the poles.
From Project Gutenberg
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