kilowatt hour

[kil-uh-wot-ouuhr, -ou-er]

kil·o·watt-hour

[kil-uh-wot-ouuhr, -ou-er]
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, kwhr

Origin:
1890–95
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Kilowatt hour is always a great word to know.
So is doohickey. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a gadget; dingus; thingumbob.
WordNet
kilowatt hour

noun
a unit of energy equal to the work done by a power of 1000 watts operating for one hour 
WordNet® 3.0, © 2006 by Princeton University.
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