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1. A gate which serves to protect a harbor tidal basin from the sea, such as one of a pair of supplementary gates at the entrance to a tidal basin exposed to the sea. 2. A movable gate which protects the main deck of a ferry from waves and sea spray.

Related Terms

ORTHOTROPIC DECK

A bridge deck constructed typically of flat steel plate and longitudinal and transverse ribs; functions in carrying traffic and acting as top flanges of floor beams.

FREEBOARD DECK

Deck to which freeboard is measured

TWEEN DECK

The space between any two adjacent decks

FLUSH DECK

The upper deck of a vessel that extends unbroken from stem to stern.

BEAR

Large squared off stone used with sand for scraping clean wooden decks.

BELOW DECKS

In or into any of the spaces below the main deck of a vessel.

FLIGHT DECK

The flat deck used for the launch and recovery of aircraft.

GUNWALE

The upper edge of the hull. The top timber on the rail round the outer edge of the deck.

POOP DECK

The high deck on the aft superstructure of a ship.

ORLOP

The lowest deck in a ship having four or more decks

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