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Definition of hydroelectricity
hydroelectricity
/ˌhaɪdroʊɪˌlɛkˈtrɪsəti/
hy · dro · e · lec · tric · i · ty
Adverb:hydroelectrically
•Adjective:hydroelectric
hydroelectricity Lexical Profile
CEFR
B2
Grade
8
Tier
2
Usage
Top 10k
Syllables
7
• noun
1
Electricity generated by the use of water power, typically by directing falling or fast-flowing water through turbines connected to electrical generators.
Example
"Several mountainous nations rely heavily on hydroelectricity as their primary source of renewable energy."
• Rhymes for hydroelectricity
• Nearby Words
Word Origin & Etymology
Formed in the late 19th century from the combining form 'hydro-' (from Ancient Greek 'hydor', meaning 'water') and 'electricity' (ultimately from Greek 'elektron', meaning 'amber').
Usage Trend
Historical frequency of usage in published text.
180019102020
Data source: Google Books Ngram Viewer
Cite this Entry
Wordmom. (2026). Definition of Hydroelectricity. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/hydroelectricity