catchment area noun2 •An area from which water drains into a particular lake, river, etc.; the catchment area of a large river includes its tributaries. •The area served by a local institution, such as a hospital or school, or by extension, a railway station.As well as the new station, the funding will allow the building of the Chelmsford North East bypass, enhancing access to and the catchment area of the station. — 2019 formscatchment areas
