Definitions

A natural stream arising in a given drainage basin, its flow not wholly dependent for its flow on surface drainage in its immediate area, flowing in a channel with a well-defined bed between visible banks or through a definite depression in the land, having a definite and permanent or periodic supply of water, and usually, but not necessarily, having a perceptible current in a particular direction and discharging at a fixed point into another body of water. (Source: GEMET/BJGEO)

Hierarchy
Broader: LEO Thesaurus
Related terms:
river
river basin
stream
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