n. A dam constructed across a river or stream in order to create a millpond.
the GNU version of the Collaborative International Dictionary of English
n. A dam or mound to obstruct a water course, and raise the water to a height sufficient to turn a mill wheel.
The Century Dictionary and Cyclopedia
n. A dam designed to check the flow of a stream and cause the water to rise until a sufficient head has been obtained to furnish the power necessary for turning a mill-wheel.
n. A mill-pond.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. dam to make a millpond to provide power for a water mill
Word Usage
"Near the milldam was the millpond, deep and full of fish; a little mill with a thatched roof was working away with"