watt-hour
or watt·hour
[ wot-ouuh r, -ou-er ]
/ ˈwɒtˌaʊər, -ˌaʊ ər /
noun
a unit of energy equal to the energy of one watt operating for one hour, equivalent to 3600 joules. Abbreviation: Wh
Origin of watt-hour
First recorded in 1885–90
Words nearby watt-hour
watson-wentworth,
watsonia,
watsonville,
watt,
watt, james,
watt-hour,
watt-second,
wattage,
watteau,
watteau back,
wattenscheid
Example sentences from the Web for watt-hour
A watt-hour is the amount of energy needed by a device which uses one watt and is operated for one hour.
Mechanical Devices in the Home |Edith Louise AllenElectricity is usually purchased by the kilowatt hour, and measured by the watt-hour meter (Fig. 160).
Mechanical Devices in the Home |Edith Louise Allen
British Dictionary definitions for watt-hour
watt-hour
noun
a unit of energy equal to a power of one watt operating for one hour. 1 watt-hour equals 3600 joules
Scientific definitions for watt-hour
watt-hour
A unit of energy, especially electrical energy, equal to the work done by one watt acting for one hour. It is equivalent to 3,600 joules.