(Science: astronomy) Berth deck, the upper deck, usually a light deck, erected above the frame of the hull. Orlop deck, the deck or part of a deck where the cables are stowed, usually below the water line. Poop deck, the deck forming the roof of a poop or poop cabin, built on the upper deck and extending from the mizzenmast aft. Quarter-deck, the part of the upper deck abaft the mainmast, including the poop deck when there is one. Spar deck. Same as the upper deck. Sometimes a light deck fitted over the upper deck. Upper deck, the highest deck of the hull, extending from stem to stern.
Origin: D. Dek. See deck.