An area of land where rainfall is collected and channels into a particular stream, river, or water system.
From 'catch' + 'land,' combining the idea of 'catching' water with the geographical area where this occurs. Related to 'catchment' but less commonly used in modern English.
Catchland is essentially the funnel-shaped landscape around you—every drop of rain that falls in your area either flows into your local water system or someone else's, depending on the subtle slopes of the terrain. Mapmakers use catchland boundaries to predict where floods will flow.
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