clerestory [ˈklɪəˌstɔːri] (美 亦作 clearstory) (pl. -ies)
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 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)一组天窗;一组高侧窗 ■a raised section of roof running down the centre of a railway carriage, with small windows or ventilators 火车车厢顶通风部分