Definitions for kilowatt-hour
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Random House Webster's College Dictionary
kil′owatt-hour′(n.)
a unit of energy, equivalent to the energy transferred or expended in one hour by one kilowatt of power; approximately 1.34 horsepower-hours.
Category: Electricity and Magnetism
Ref: Abbr.: kWh , kwh
Origin of kilowatt-hour:
1890–95
Wiktionary
kilowatt-hour(Noun)
a unit of electrical energy equal to that done by one kilowatt acting for one hour
kilowatt-hour(Noun)
a u201Cunitu201D of electrical consumption by which domestic consumers are charged
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"kilowatt-hour." Definitions.net. STANDS4 LLC, 2013. Web. 22 May 2013. <http://www.definitions.net/definition/kilowatt-hour>.