Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary
1

volt

play
noun \ˈvōlt, ˈvȯlt\

Definition of volt

  1. 1 :  a leaping movement in fencing to avoid a thrust

  2. 2 a :  a tread or gait in which a horse going sideways makes a turn around a center b :  a circle traced by a horse in this movement



Origin and Etymology of volt

French volte, from Italian volta turn, from voltare to turn, from Vulgar Latin *volvitare, frequentative of Latin volvere to roll — more at voluble


First Known Use: 1688

Rhymes with volt


2

volt

play
noun \ˈvōlt\

Definition of volt

  1. :  the practical meter-kilogram-second unit of electrical potential difference and electromotive force equal to the difference of potential between two points in a conducting wire carrying a constant current of one ampere when the power dissipated between these two points is equal to one watt and equivalent to the potential difference across a resistance of one ohm when one ampere is flowing through it



Origin and Etymology of volt

Alessandro Volta


First Known Use: 1873

Other Weights and Measures Terms


VOLT Defined for Kids

volt

play
noun \ˈvōlt\

Definition of volt for Students

  1. :  a unit for measuring the force that moves an electric current




Medical Dictionary

volt

play
noun \ˈvōlt\

Medical Definition of volt

  1. 1:  the practical mks unit of electrical potential difference and electromotive force equal to the difference of potential between two points in a conducting wire carrying a constant current of one ampere when the power dissipated between these two points is equal to one watt and equivalent to the potential difference across a resistance of one ohm when one ampere is flowing through it

  2. 2:  a unit of electrical potential difference and electromotive force equal to 1.00034 volts and formerly taken as the standard in the United States



Biographical Note for volt

Volta

\ˈvȯl-tä\play ,

Alessandro Giuseppe Antonio Anastasio

(1745–1827), Italian physicist. Volta served as professor of physics at the University of Pavia, Italy, from 1779 to 1804. From 1815 he was director of the philosophical faculty at the University of Padua, Italy. His interest in electricity led him to invent in 1775 a device used to generate static electricity. In 1800 he demonstrated his electric battery for the first time. The volt, a unit of potential difference that drives current, was named in his honor.


Learn More about volt


Seen and Heard

What made you want to look up volt? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to destroy or remove completely

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

two-chairs-on-a-pier-by-the-ocean-in-summer

Which of the following words means “of or relating to summer”?

brumal estival vernal hiemal
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ