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1. (n.) potentiometer
a device for measuring electromotive force or potential difference by comparison with a known voltage.
Etymology: (1880–85)
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| Definition of 'potentiometer' |
Princeton's WordNet |
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1. (noun) potentiometer
a measuring instrument for measuring direct current electromotive forces
2. (noun) potentiometer, pot
a resistor with three terminals, the third being an adjustable center terminal; used to adjust voltages in radios and TV sets
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| Definition of 'potentiometer' |
Webster Dictionary |
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1. (noun) potentiometer
an instrument for measuring or comparing electrial potentials or electro-motive forces
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| Definition of 'potentiometer' |
The Standard Electrical Dictionary |
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1. potentiometer
An arrangement somewhat similar to the Wheatstone Bridge for determining potential difference, or the electro-motive force of a battery. In general principle connection is made so that the cell under trial would send a current in one direction through the galvanometer. Another battery is connected, and in shunt with its circuit the battery under trial and its galvanometer are connected, but so that its current is in opposition. By a graduated wire, like that of a meter bridge, the potential of the main battery shunt can be varied until no current passes. This gives the outline of the method only.
In the cut A B is the graduated potentiometer wire through which a current is passed in the direction of the arrow. E is the battery under trial, placed in opposition to the other current, with a galvanometer next it. Under the conditions shown, if the galvanometer showed no deflection, the E. M. F. of the battery would be to the E. M. F. between the ends of the potentiometer wire, 1 . . . . .10, as 1.5 the distance between the points of connection, A and D of the battery circuit, is to 10, the full length of the potentiometer wire.
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Definitions of potentiometer 
