noun: (firearms) A repeating firearm with three or more barrels grouped around a central axis.
noun: A buttress at one side of the court in the game of fives.
noun: (architecture) A tower capped by a cupola, looking similar to a giant pepper shaker.
noun: (architecture, slang, chiefly in the plural) Any of the buildings of the Royal Academy and National Gallery in Trafalgar Square, London, having cupolas on the roof.
