Usually means: Electricity generated using water power.
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We found 27 dictionaries that define the word hydroelectric:

General (24 matching dictionaries)
  1. hydroelectric: Merriam-Webster
  2. hydroelectric: Oxford Learner's Dictionaries
  3. hydroelectric: American Heritage Dictionary of the English Language
  4. hydroelectric: Collins English Dictionary
  5. hydroelectric: Vocabulary.com
  6. Hydroelectric, hydroelectric: Wordnik
  7. hydroelectric: Cambridge Advanced Learner's Dictionary
  8. hydroelectric: Wiktionary
  9. hydroelectric: Webster's New World College Dictionary, 4th Ed.
  10. hydroelectric: The Wordsmyth English Dictionary-Thesaurus
  11. hydroelectric: Infoplease Dictionary
  12. hydroelectric: Dictionary.com
  13. hydroelectric: Online Etymology Dictionary
  14. hydroelectric: Cambridge Essential American English Dictionary
  15. Hydroelectric: Wikipedia, the Free Encyclopedia
  16. hydroelectric: Rhymezone
  17. hydroelectric: AllWords.com Multi-Lingual Dictionary
  18. hydroelectric: Stammtisch Beau Fleuve Acronyms
  19. hydroelectric: FreeDictionary.org
  20. hydroelectric: Mnemonic Dictionary
  21. hydroelectric: TheFreeDictionary.com
  22. hydroelectric: Longman Dictionary of Contemporary English

Computing (1 matching dictionary)
  1. hydroelectric: Encyclopedia

Tech (2 matching dictionaries)
  1. hydroelectric: NATURAL RESOURCES DEFENSE COUNCIL
  2. Lake and Water Word Glossary (No longer online)

(Note: See hydroelectrically as well.)

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Definitions from Wiktionary (
)
American English Definition British English Definition
▸ adjective:  That generates electricity by converting the energy of moving water, or of steam escaping under high pressure.
▸ adjective:  Of or relating to the electricity so produced.

Similar:
heliohydroelectric, hydro-geothermal, electricity-generating, electrogenerated, cogenerative, electrothermic, photohydrothermal, thermovoltaic, voltaic, aerosteam, more...

Opposite:
thermal, nuclear, solar, wind

Types:
dam, run-of-the-river, turbine, micro-hydro, barrage, more...

Phrases:
hydroelectric power, hydroelectric plant, hydroelectric dams, hydroelectric dam, hydroelectric energy, more...

Colors:
    blue,     turquoise,     aqua,     teal,     cyan, more...
▸ Word origin

▸ Words similar to hydroelectric

▸ Usage examples for hydroelectric

▸ Idioms related to hydroelectric

▸ Wikipedia articles (New!)

▸ Popular nouns described by hydroelectric

▸ Words that often appear near hydroelectric

▸ Rhymes of hydroelectric

▸ Invented words related to hydroelectric

Similar:
heliohydroelectric, hydro-geothermal, electricity-generating, electrogenerated, cogenerative, electrothermic, photohydrothermal, thermovoltaic, voltaic, aerosteam, more...

Opposite:
thermal, nuclear, solar, wind

Types:
dam, run-of-the-river, turbine, micro-hydro, barrage, more...

Phrases:
hydroelectric power, hydroelectric plant, hydroelectric dams, hydroelectric dam, hydroelectric energy, hydroelectric generators, hydroelectric generator, hydroelectric turbine, pumped hydroelectric storage, more...

Colors:
    blue,     turquoise,     aqua,     teal,     cyan, more...



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