Definitions for "Catchment area"
An area that 'catches' rainfall or snow to supply a river, aquifer, or lake.
The area from which a school traditionally draws the majority of its pupils.
A land area where precipitation runs off into streams, rivers, lakes, and reservoirs. It is a land feature that can be identified by tracing a line along the highest elevations between two areas on a map, often a ridge. Large drainage basins, like the area that drains into the River Severn contain thousands of smaller drainage basins.
Keywords:  drawn, ill, facility, region, clients
Region from which the clients of a particular health facility are drawn. Such a region may be well or ill defined. See also community.
The place near a certain organization, like a center or hospital, which includes a set of clients (patients, participants).