drainage basin

• Zone de terre où toute l'eau de surface provenant de la pluie, de la fonte des neiges ou de la glace converge vers un point unique, tel qu'une rivière, un lac ou un océan, généralement délimitée par des élévations comme des collines ou des crêtes.

An area of land where all surface water from rain, melting snow, or ice converges to a single point, such as a river, lake, or ocean, typically bounded by higher terrain like hills or ridges.

1. Geographic areaB2formal

   An area of land where all surface water from rain, melting snow, or ice converges to a single point, usually the exit of a basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean.

   bassin versant

   • The Amazon River has the largest drainage basin in the world.
   • The drainage basin of the Mississippi River covers parts of 31 US states.
   • Heavy rainfall in the drainage basin caused the river to flood.