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Origin of voltage

First recorded in 1885–90; volt1 + -age
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for voltage


  1. an electromotive force or potential difference expressed in volts
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for voltage

1890, from volt + -age.

Online Etymology Dictionary, © 2010 Douglas Harper

voltage in Medicine


  1. Electromotive force or potential difference, usually expressed in volts.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

voltage in Science


  1. A measure of the difference in electric potential between two points in space, a material, or an electric circuit, expressed in volts.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.