breakwater

中文： 防波堤

1. A construction in or around a harbour designed to break the force of the sea and to provide shelter for vessels lying inside.
2. A low bulkhead across the forecastle deck of a ship which diverts water breaking over the bows into the scuppers.
3. A wooden or concrete barrier, usually perpendicular to the shore, intended to prevent the movement of sand along a coast.

复数 breakwaters