- a device for measuring electromotive force or potential difference by comparison with a known voltage.
- voltage divider.
Origin of potentiometer
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- chem (of a titration) having the end point determined by a change in potential of an electrode immersed in the solution
- an instrument for determining a potential difference or electromotive force by measuring the fraction of it that balances a standard electromotive force
- a device with three terminals, two of which are connected to a resistance wire and the third to a brush moving along the wire, so that a variable potential can be tapped off: used in electronic circuits, esp as a volume control
Sometimes shortened to: pot
Word Origin and History for potentiometric
Online Etymology Dictionary, © 2010 Douglas Harper
- A mechanical variable resistor. See more at resistor.
- An instrument for measuring an unknown voltage by comparison with a known voltage, such as that of a generator.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.