- The energy produced by running or falling water that is used for driving machinery, especially for generating electricity;
- A source of such energy, as a waterfall.
- A water right owned by a mill.
Important Notice: Limited Web Access Dec 16 to 18, 2016
AIChE will undertake a routine upgrade of our digital infrastructure over the weekend of December 16-18, 2016. During this period access to certain areas of the website will be limited. Learn more about how access will be affected.