Potentiometer

[pә,tenʃi'ɒmitә]

(noun.) a resistor with three terminals, the third being an adjustable center terminal; used to adjust voltages in radios and TV sets.

(noun.) a measuring instrument for measuring direct current electromotive forces.

布伦达編輯--From WordNet

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

安塞姆校對