galvanopalpation

Esthesiometry by means of a sharp-pointed electrode through which a feeble direct current passes to the cathode applied to an indifferent part.

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gal·va·no·pal·pa·tion (gal″və-no-pal-paґshən) a method of testing the sensory and vasomotor nerves of the skin by applying a sharp-pointed anode electrode to the part of the skin to be tested, the cathode being applied to some other part of the body.