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[hahy-droh-i-lek-trik] /ˌhaɪ droʊ ɪˈlɛk trɪk/
pertaining to the generation and distribution of electricity derived from the energy of falling water or any other hydraulic source.
Origin of hydroelectric
1825-35; hydro-1 + electric
Related forms
[hahy-droh-i-lek-tris-i-tee, -ee-lek-] /ˌhaɪ droʊ ɪ lɛkˈtrɪs ɪ ti, -ˌi lɛk-/ (Show IPA),
noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for hydroelectricity
  • Today hydroelectricity is still an important source of energy.
  • Imagine upstate cellulose and hydroelectricity fueling cars and trucks throughout the state.
  • These dams generate hydroelectricity, or electricity powered by water.
  • And extensive dam building to produce hydroelectricity has displaced whole villages and towns.
  • Also called hydroelectricity or hydroelectric power hygiene: noun: science and methods of keeping clean and healthy.
  • Ostensibly its purpose is to provide more irrigation for local rice paddies, and some hydroelectricity.
  • Much of the region's power comes from hydroelectricity and biofuels.
  • Apart from hydroelectricity, it is the only base-load source that does not require burning fossil fuels.
  • hydroelectricity generated from water stored in large dams cause land degradation.
  • Data on the renewable energy resource of hydroelectricity.
British Dictionary definitions for hydroelectricity


generated by the pressure of falling water: hydroelectric power
of or concerned with the generation of electricity by water pressure: a hydroelectric scheme
Derived Forms
hydroelectricity (ˌhaɪdrəʊɪlɛkˈtrɪsɪtɪ; -ˌiːlɛk-) noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Contemporary definitions for hydroelectricity's 21st Century Lexicon
Copyright © 2003-2014, LLC
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Word Origin and History for hydroelectricity



1827, formed in English from hydro- + electric. Related: Hydroelectricity.

Online Etymology Dictionary, © 2010 Douglas Harper
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hydroelectricity in Science

Using the power of water currents to generate electric power. Generally, hydroelectric power is created by directing water flow through a turbine, where the water causes fans to turn, creating the torque needed to drive an electric generator.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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