1. a dam built across a stream to create a pond that provides water power for operating a mill

Examples

• The old milldam still stands across the creek behind the abandoned grist mill.
• Water flowed over the milldam into the wheel pit below.
• The miller repaired the milldam each spring after the ice melted.
• Fish gathered in the pool created by the milldam.
• The historic milldam was built of fieldstone in the 1800s.
• Heavy rains caused the milldam to overflow its banks.