kilowatt-hour
noun/ˌkɪləwɒt ˈaʊə(r)/
/ˌkɪləwɑːt ˈaʊər/
(abbreviation kWh)
- a unit for measuring electrical energy equal to the power provided by one kilowatt in one hour
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kilowatt-hour
Definition of kilowatt-hour noun from the Oxford Advanced Learner's Dictionary