cofferdam (plural cofferdams)

  1. A temporary watertight structure that is pumped dry to enclose an area underwater and allow construction work on a ship, bridge, or rig to be carried out; a caisson.
  2. (nautical) An empty space that acts as a protective barrier between two floors or bulkheads on a ship.
  • German: Kofferdamm
  • Italian: tura, cassone
  • Spanish: ataguía

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