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pole piece

noun

Definition of pole piece 

1 : a stout harness strap connecting a horse's collar with the pole of a wagon

2 : the ridgepole of a roof

3 [ 4pole + piece ] : a piece of soft iron at a pole of an electromagnet usually shaped to concentrate or direct the external flux in some desired path

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History and Etymology for pole piece

pole entry 1 + piece

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