a unit of power, equal to 1000 watts. Abbreviation: kW, kw

Origin of kilowatt

First recorded in 1880–85; kilo- + watt Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for kilowatt

Contemporary Examples of kilowatt

Historical Examples of kilowatt

  • It's going in at ten kilovolts, so that's a five billion kilowatt supply.

    Islands of Space

    John W Campbell

  • There are amperes, and there are volts, and there are kilowatt hours.

    David and the Phoenix

    Edward Ormondroyd

  • We had to use a kilowatt before they could pick it up at 200 miles.


    John Keith Laumer

  • Voltage, amperage, and watt or kilowatt are the terms in common use.

  • A horse-power is equivalent to 746 watts, or is nearly 3/4 of a kilowatt.


    Willis Eugene Tower

British Dictionary definitions for kilowatt



one thousand wattsSymbol: kW
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 kilowatt

1884, from kilo- + watt. Kilowatt hour is from 1892. Related: Kilowattage.

Online Etymology Dictionary, © 2010 Douglas Harper

kilowatt in Science



A unit of power equal to 1,000 watts.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

kilowatt in Culture



One thousand watts. (See power.)

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.