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diathermy| Generation of heat in body tissues by the passage of high-frequency electric currents between two electrodes placed on the skin. The heat engendered helps to relieve rheumatic and arthritic pain. |
| The principle of diathermy is also applied in surgery. The high-frequency current produces, at the tip of a diathermy knife, sufficient heat to cut tissues, or to coagulate and kill cells, with a minimum of bleeding. |
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