catchment area

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.
2. The area served by a local institution, such as a hospital or school.

• (hydrology): catchment basin, drainage basin (see those entries for translations)

• “catchment area” in Colin McIntosh, editor, Cambridge Advanced Learner’s Dictionary, 4th edition, Cambridge: Cambridge University Press, 2013, →ISBN; reproduced on the Cambridge English Dictionary, Cambridge: Cambridge University Press, retrieved 1 March 2017.
• “catchment area” (US) / “catchment area” (UK) in Oxford Dictionaries, Oxford University Press.

• catchment area on Wikipedia.Wikipedia