What does backwash mean geography?

In geography, "backwash" refers to the movement of water that occurs after waves break on the shore. As waves crash, they push water up the beach, and the backwash is the subsequent flow of that water retreating back into the ocean. This process can influence coastal erosion, sediment transport, and the overall shape of the shoreline. Backwash plays a crucial role in shaping beach environments and maintaining coastal ecosystems.