- hydroelectric hy‧dro‧e‧lec‧tric [ˌhaɪdrəʊ-ɪˈlektrɪk◂ ǁ -droʊ-] adjectiveinvolving the use of water power to produce electricity:
• The dams produce most of the country's hydroelectric power.— hydroelectricity noun [uncountable] :
• Oil was abandoned in favour of hydroelectricity and nuclear power.
* * *hydroelectric UK US /ˌhaɪdrəʊɪˈlektrɪk/ adjective► NATURAL RESOURCES producing electricity by using the power of fast moving water, such as from a river: »
hydroelectric powerhydroelectricity noun [U]► »
More than 80% of the power generated in the Northwest comes from hydroelectricity.
Financial and business terms. 2012.