Pronunciation: (wô'tur-hwēl", -wēl", wot'ur-), [key]
1. a wheel or turbine turned by the weight or momentum of water and used to operate machinery.
2. a wheel with buckets for raising or drawing water, as a noria.
3. the paddle wheel of a steamboat. Also,wa'ter wheel".
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.