breakwater Meaning, Definition & Usage
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noun a protective structure of stone or concrete; extends from shore into the water to prevent a beach from washing away
groyne; bulwark; jetty; groin; mole; seawall.
WordNet
Break"wa`ter noun
Definitions
Any structure or contrivance, as a mole, or a wall at the mouth of a harbor, to break the force of waves, and afford protection from their violence.