technical - Word for: A river than splits into two, later rejoining into one? (fluvial terminology)



  • A tributary is river or stream that flows into a larger river.

  • A distributary a stream branching off a river.


Is there a word that combines both structures, the idea of a river that splits in two and later rejoins to become one river again?


         /---------------\
---------                 --------------------
         \---------------/

My focus here is on the waterway, not the land. I’m looking for a word describing the behavior of the river splitting and later rejoining, without regard for the geography, and without regard for the cause or effect between land and water.




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