cooling tower
US /ˈkuːlɪŋ ˌtaʊər/
UK /ˈkuːlɪŋ ˌtaʊər/
1.
a large tower that cools water or other fluids by evaporating part of the water, used especially in industry to remove heat from power plants and other facilities
:
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The nuclear power plant has several large cooling towers.
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Steam billowed from the top of the cooling tower.