n :  a high-frequency oscillating current of low voltage and high amperage used in diathermy
 
Ar•son•val, Jacques-Arsène d' (1851-1940), French biophysicist. D'Arsonval did pioneering work in electrotherapy. In 1892 he introduced the use of high-frequency currents to treat diseases of the skin and mucous membranes. The current is now known as the D'Arsonval current.
 
   
 
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