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permatemp
permeability
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permeance
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Permian
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permanent magnet
per·ma·nent mag·net (plural per·ma·nent mag·nets)


noun 
Definition:
 
magnet remaining magnetic: a magnet that retains its properties after the magnetizing force has been removed from it. Permanent magnets are used in loudspeakers and small motors.

per·ma·nent mag·net·ism noun
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