WORD MEANING
Drainage basin meaning
DRAY-nij BAY-sin · noun
An area of land where all precipitation collects and drains off into a common outlet, such as a river, bay, or other body of water.
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The geographic region contributing water to a particular stream or river system.
A natural hydrological unit defined by topographic boundaries that direct water flow.
The term is primarily used in geography and environmental science to describe water flow areas.
Examples
The river's drainage basin covers a vast area of the countryside.
Scientists studied the drainage basin to understand water flow and flood risks.