Definition of "water power" []

• Any source of energy derived from running or falling water; originally obtained from a waterwheel immersed in a stream; modern hydroelectric power is obtained from turbines fed from reservoirs (noun)

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• "Techniques and devices used in steam engines were applied to water power and vice versa: designers of industrial waterwheels were often design - ers of steam engines also."
• "For a long period the advan - tages of steam and water power were fairly evenly balanced."