Dictionary
wa'ter pow"er
1. the power of water used, or capable of being used, to drive machinery, turbines, etc.
2. a waterfall or descent in a watercourse capable of being so used.
3. a water right possessed by a mill.
Also,wa'ter•pow"er.Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.