Perkinism

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Perkinism
Perkinism Med. (ˈpɜːkɪnɪz(ə)m) Also † Perkinsism. [See -ism.] A method of treatment introduced by Elisha Perkins, an American physician (died 1799), for the cure of rheumatic diseases; it consisted in drawing two small pointed rods, one of steel and one of brass, called ‘metallic tractors’, over the... Oxford English Dictionary
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tractor
tractor (ˈtræktə(r)) [Late or med.L. agent-n. from trahĕre, tract-um to draw: see -or.] 1. pl. (in full (Perkins's) metallic tractors): Name of a device invented by Elisha Perkins, an American physician (died 1799), consisting of a pair of pointed rods of different metals, as brass and steel, which ... Oxford English Dictionary
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