Definitions from Wiktionary (river basin)

▸ noun:  (geography) An extent of land where water from rain or snow melt drains downhill into a river or series of rivers.
▸ Also see river_basin


▸ Words similar to river basins
▸ Usage examples for river basins

▸ Idioms related to river basins
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▸ Words that often appear near river basins
▸ Rhymes of river basins

▸ Invented words related to river basins