1. A wheel with buckets attached to its rim; raises water from a stream or pond
   "The ancient irrigation system relied on a waterwheel to lift water from the river";
   - water wheel
    
2. A wheel that rotates by direct action of water; a simple turbine
   "The old mill used a waterwheel to grind grain";
   - water wheel

Derived forms: water wheels, waterwheels

Type of: hydrokinetic engine, wheel

Part of: water mill

Encyclopedia: Waterwheel