Oxford Dictionary English hydroelectric adjectiveadjective BrE BrE//ˌhaɪdrəʊɪˈlektrɪk// ; NAmE NAmE//ˌhaɪdroʊɪˈlektrɪk// The power industry Add to my wordlistjump to other results enlarge image using the power of water to produce electricity; produced by the power of water a hydroelectric plant hydroelectric power Wordfinderenergyenergy, fossil fuel, fracking, fuel, hydroelectric, nuclear, oil, power station, solar, wind farm Oxford Collocations DictionaryHydroelectric is used with these nouns: dam, power See full entry See related entries: The power industrySee hydroelectric in the Oxford Advanced American DictionaryCheck pronunciation: hydroelectric oxfordlearnersdictionaries.com