river bottom

• Fond ou surface sous une rivière, constitué de sédiments, de cailloux ou de sable, sur lequel l'eau s'écoule.

The ground or floor beneath a river, consisting of sediment, rock, or sand, over which the water flows.

1. Bed of a riverB1formal

   The ground at the bottom of a river, typically composed of sand, gravel, rocks, or mud.

   lit de rivière

   • The divers explored the river bottom looking for lost artifacts.
   • Fish often hide among the rocks on the river bottom.
   • The river bottom was covered in a thick layer of silt.