Dictionary
kil•o•watt-hour
Pronunciation: (kil'u-wot"ouur', -ou'ur), [key]—
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.
Abbr.: kWh, kwhr
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.