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Dictionary Suite
bulkhead a wall that divides a ship into watertight parts. [1/3 definitions]
caisson a watertight chamber used in constructing or repairing underwater structures. [1/2 definitions]
cofferdam a temporary, watertight structure, built to permit construction under water or in wet soil.
freeboard the distance on a cargo ship between the water line and the highest watertight deck or the upper edge of the side of the hull. [1/2 definitions]
gasket any of numerous rings, seals, or the like used to make a joint watertight or airtight, as in a pipe or machine.