hydroelectric power.

1930–35; hydro-1 + power

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To hydropower
World English Dictionary
hydropower (ˈhaɪdrəʊˌpaʊə)
hydroelectric power

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Example sentences
Maybe you'll convert your car to run on vegetable oil or something else, but
  you won't be on solar or hydropower for a while yet.
It is also worth noting that hydropower, which many believe people believe to
  be safe, is quite dangerous.
Hydropower is electricity generated using the energy of moving water.
Meanwhile, on land, the threat comes from hydropower.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature