noun
a type of power source that uses the energy of flowing water to generate electricity
adjective
relating to or produced by electricity generated by the movement of water
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The construction of a hydroelectric power plant requires careful planning and engineering.
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Have you ever visited a hydroelectric dam before? It's pretty impressive.
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I heard that hydroelectricity is the way to go for clean energy.
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Her ideas flowed like a hydroelectric river, generating power and inspiration for all.