Noun
That part of the upper deck abaft the mainmast, including the poop deck when there is one.
Source: Webster's dictionaryquarter deck
From around 1778, a larger "heavy" frigate was developed with a main battery of twenty-six or twenty-eight 18-pounder guns (again with the remaining ten smaller guns carried on the quarter deck and forecastle). Source: Internet
On the 27 April a bomb passed through the quarter deck, a wardroom, a water tank and 4-inch (10.2 cm) magazine and out through the hull to explode in the fjord. Source: Internet
From this most welcome intelligence, it was not long before I was on the quarter deck, where the captain, with a bow, presented me his sword, and said the admiral was dying of his wounds. Source: Internet