The Collaborative International Dictionary
Catchwater
Catchwater \Catch"wa`ter\, n. A ditch or drain for catching water. See Catchdrain.
Wiktionary
catchwater
n. A device which captures surface runoff for use as a water supply.
Wikipedia
Catchwater
A catchwater device is a large-scale man-made device for catching surface runoff from hills and the sky from precipitation by channeling it to reservoirs for commercial and domestic use later. Freshwater is a scarce natural resource due to pollution, droughts, and overpopulation. Catchwater is a sustainable mechanism to increase freshwater in areas facing droughts or polluted waterways.
Usage examples of "catchwater".
He rode straight to his own manor of Catchwater, where his Merida uncles waited.