Word Study
catchment
CIDE DICTIONARY
catchment, n.
A surface of ground on which water may be caught and collected into a reservoir. [1913 Webster]
OXFORD DICTIONARY
catchment, n. the collection of rainfall.
Idiom
catchment area
1 the area from which rainfall flows into a river etc.
2 the area served by a school, hospital, etc.
1 the area from which rainfall flows into a river etc.
2 the area served by a school, hospital, etc.
For further exploring for "catchment" in Webster Dictionary Online