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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.

marine work, often surrounding a central space filled with stones; as, a cobwork dock or breakwater.

A mass of large stones thrown into water at random to form bases of piers, breakwaters, etc.

rbor improvements, etc. -- Floating dock. (Naut.) See under Dock. -- Floating harbor, a breakwater of cages or booms, anchored and fastened together, and used as a protection to ships riding at anchor to leeward. Knight. -- Floating heart (Bot.), a small aquatic plant (Limnanthemum lacunosum) whose heart-shaped leav…

o break the force of the surf. (b) The seaward projecting, slightly inclined portion of a breakwater. Knight. (c) The part of the shore between high and low water marks. -- Fore sight, that one of the two sights of a gun which is near the muzzle. -- Fore tackle (Naut.), the tackle on the foremast of a ship. -- Fore…

riage mounted on track rails. It is used esp. for setting heavy masonry blocks for piers, breakwaters, etc.