hydroelectric
hy-droh-ih-LEK-trik
/ˌhaɪ.droʊ.ɪˈlɛk.trɪk/
Relating to or generating electricity through the kinetic force of falling or fast-flowing water.
Typically involves large infrastructure like river dams, reservoirs, or underwater water turbines.
The story behind the word. Formed in the late 19th century as hydroelectric generators were developed at waterfalls like Niagara. It combines Greek 'hydor' (water) with 'electric', which itself came from Greek 'elektron' (amber, which creates static when rubbed).
Word relationships
- hydropowered: 'Hydropowered' refers directly to mechanical or electrical power from water; 'hydroelectric' specifies electrical generation.
Commonly confused with
- geothermal: 'Hydroelectric' harnesses liquid movement down gradients; 'geothermal' taps thermal energy within Earth's crust.
Word family
- hydroelectricity (noun): Electricity produced by water power.
Collocations
- hydroelectric dam
- hydroelectric power
- hydroelectric plant
- hydroelectric generator
Example sentences
- "The massive dam across the canyon provides low-cost hydroelectric power to millions of residents in surrounding metropolitan areas." Infrastructure
Memory hook
HYDRO (Water) + ELECTRIC = Water motion turning into electric power. Power carried by water.
When not to use
Do not use to describe power generated by ocean heat; use 'ocean thermal energy' for heat-based systems.
Fun facts
- The world's largest power station of any kind is the Three Gorges Hydroelectric Dam in China.
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