kilowatt-hour

[ kil-uh-wot-ouuh r, -ou-er ]
/ ˈkɪl əˌwɒtˈaʊər, -ˈaʊ ər /
|

noun

a unit of energy, equivalent to the energy transferred or expended in one hour by one kilowatt of power; approximately 1.34 horsepower-hours. Abbreviation: kWh, K.W.H., kwhr

Nearby words

  1. kiloton,
  2. kilovolt,
  3. kilovolt-ampere,
  4. kilovoltage,
  5. kilowatt,
  6. kilpatrick,
  7. kilroy,
  8. kilt,
  9. kilt pleat,
  10. kilted

Origin of kilowatt-hour

First recorded in 1890–95

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for kilowatt-hour



British Dictionary definitions for kilowatt-hour

kilowatt-hour

noun

a unit of energy equal to the work done by a power of 1000 watts in one hourSymbol: kWh
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

Science definitions for kilowatt-hour

kilowatt-hour

A unit used to measure energy, especially electrical energy in commercial applications. One kilowatt-hour is equal to one kilowatt of power produced or consumed over a period of one hour, or 3.6 X 106 joules.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Culture definitions for kilowatt-hour

kilowatt-hour

[ (kil-uh-waht) ]

A unit of energy: the expenditure of one kilowatt of power for one hour. A toaster running for an hour will use about this much energy.

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.