# hydroelectric

/ˌhaɪdɹoʊɪˈɫɛktɹɪk/ (US) · /hˌaɪdɹəʊlˈɛktɹɪk/ (UK) · CEFR B2 · Adjective

Source: https://englishreference.com/word/hydroelectric
Updated: 2026-05-08

## Definition

using the power of moving water to create electricity.

For teachers: relating to the generation of electricity through the use of flowing water to drive turbines.

## Examples

- The city gets its power from a hydroelectric dam.
- Many mountainous regions invest in hydroelectric power because their steep rivers provide a constant source of energy.
- While hydroelectric projects offer a renewable alternative to fossil fuels, the construction of large-scale reservoirs can significantly alter local ecosystems and displace riverside communities.

## Usage notes

- Typically used attributively before nouns like 'power', 'dam', or 'plant'.

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