catchment area

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catchment area (plural catchment areas)

  1. (hydrology) An area from which water drains into a particular lake, river, etc.; the catchment area of a large river includes its tributaries.
    Synonyms: catchment basin, drainage basin
  2. The area served by a local institution, such as a hospital or school, or by extension, a railway station.
    • 2019 October, “Funding for 20tph East London Line service”, in Modern Railways, page 18:
      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.


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