Dictionary
watt-hour
Pronunciation: (wot'ouur", -ou"ur), [key]—
n.
a unit of energy equal to the energy of one watt operating for one hour, equivalent to 3600 joules.
Abbr.: Wh
Also,watt'hour".Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.