transcutaneous electrical nerve stimulation

noun

variants also transcutaneous nerve stimulation

: electrical stimulation of the skin to relieve pain by interfering with the neural transmission of signals from underlying pain receptors

… a physical therapist can show you exercises to maintain strength and movement in the affected area and may also use transcutaneous electrical nerve stimulation, in which a small device transmits electrical impulses that stimulate nerve endings and relieve pain.

—Andrew Weil, Self Healing

called also TENS

transcutaneous electrical nerve stimulator noun

also transcutaneous nerve stimulator