the upper part of the nave, choir, and transepts of a large church, containing a series of windows. It is clear of the roofs of the aisles and admits light to the central parts of the building.
天窗阁楼,高侧窗楼座(大教堂中堂、唱诗班席位、十字形耳堂的上部,装有一组采光天窗或高侧窗)。
such a series of windows in a church or similar windows in another building
(教堂等建筑的)侧天窗,高侧窗。
a raised section of roof running down the centre of a railway carriage, with small windows or ventilators
火车车厢顶窗。
"late Middle English: from