Definitions for "Stilling basin"
a structure or excavation at the foot of a chute, drop, or spillway to reduce open the energy of the descending runoff or stream
A stilling basin is a basin constructed to dissipate the energy of fast flowing water. The stilling basin area is located just downstream of the spillway crest between the training/retaining walls.
A basin downstream from a dam that receives the discharge from tunnels or conduits or overflow from a spillway.
Keywords:  velocity, weir, pond, ahead, enough
An area ahead of the weir plate large enough to pond the liquid so that it approaches the weir plate at low velocity, also called "weir pond."
An enlarged area in a channel that is deep enough to reduce flow velocity.