Potentiometer

n.

1.

(Elec.) An instrument for measuring or comparing electrial potentials or electro-motive forces.

Noun	1.	potentiometer - a measuring instrument for measuring direct current electromotive forces
	2.	potentiometer - a resistor with three terminals, the third being an adjustable center terminal; used to adjust voltages in radios and TV sets Synonyms: pot

measuring device, measuring instrument, measuring system