Changes in excitability and conductivity in a nerve or muscle cell caused by the passage of a constant electric current. SEE ALSO: catelectrotonus, anelectrotonus. SYN: galvanotonus (1). [electro- + G. tonos, tension]
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elec·trot·o·nus i-.lek-'trät-ən-əs n the altered sensitivity of a nerve when a constant current of electricity passes through any part of it
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elec·trot·o·nus (e-lek-trotґə-nəs) the altered electrical state of a nerve or muscle cell when a constant electric current is passed through it.Medical dictionary. 2011.