- the standard unit of potential difference and electromotive force in the International System of Units(SI), formally defined to be the difference of electric potential between two points of a conductor carrying a constant current of one ampere, when the power dissipated between these points is equal to one watt. Abbreviation: V
Origin of volt1
First recorded in 1870–75; named after A. Volta
- a circular or turning movement of a horse.
- a gait in which a horse going sideways turns around a center, with the head turned outward.
- Fencing. a sudden movement or leap to avoid a thrust.
Origin of volt2
1650–60; < French volte < Italian volta, noun derivative of voltare to turn < Vulgar Latin *volvitare, frequentative of Latin volvere to turn; see vault2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for volt
Its electric car the Volt had its best month ever, selling 3,351 units.U.S. Car Sales Roar in August
September 4, 2013
On the other hand, sales of the Volt declined in April 2013 from April 2012.
The Volt, a plug-in hybrid, was expected to be the easier sell, since it also uses gas and has a range of several hundred models.
The Volt, which can run for about 30 miles on electricity and has been slow to catch on, has been mocked by critics of GM.Detroit’s Green Leap Forward Pulls In to New York Auto Show
March 29, 2013
“It sounds trivial but those numbers really add up a lot,” said Rory Paul of Volt Aerial Robotics.Unmanned Drones May Have Their Greatest Impact on Agriculture
March 26, 2013
For a six volt battery this should rarely exceed 14 amperes.The Automobile Storage Battery
O. A. Witte
The unit of velocity, or pressure of the electric current is called a volt.Electricity for the farm
Frederick Irving Anderson
That's three-millionths of a millionth of a ampere-second at one volt.The Machine That Saved The World
William Fitzgerald Jenkins
Now, in electricity the unit of pressure, or force, is called a volt.
This word "volt" does not mean any weight, as the word "pound" weight does.
- the derived SI unit of electric potential; the potential difference between two points on a conductor carrying a current of 1 ampere, when the power dissipated between these points is 1 wattSymbol: V
C19: named after Count Alessandro Volta 2
- a small circle of determined size executed in dressage
- a leap made in fencing to avoid an opponent's thrust
C17: from French volte, from Italian volta a turn, ultimately from Latin volvere to turn
Word Origin and History for volt
unit of electromotive force, 1873, back-formation from adj. voltaic.
Online Etymology Dictionary, © 2010 Douglas Harper
- A unit of electromotive force in the International System of Units that will produce a current of 1 ampere in a circuit that has resistance of 1 ohm.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- The SI derived unit used to measure electric potential at a given point, usually a point in an electric circuit. A voltage difference of one volt drives one ampere of current through a conductor that has a resistance of one ohm. One joule of work is required to move an electric charge of one coulomb across a potential difference of one volt. One volt is equivalent to one joule per coulomb. See also Ohm's law.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Ordinary household outlets are usually rated at 115 volts, car batteries at 12 volts, and flashlight batteries at 1.5 volts.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.