[wot-ouuh
r, -ou-er] 
| a unit of energy equal to the energy of one watt operating for one hour, equivalent to 3600 joules. Abbreviation: Wh |
| watt-hour (wŏt'our') n. Abbr. WH or W-hr A unit of energy, especially electrical energy, equal to the work done by one watt acting for one hour and equivalent to 3,600 joules. |
| 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. |