1. 门头气窗：transom 门窗横挡 | transom window 门头气窗 | transparent lacquer 透明亮漆
2. 气窗：transom light 气窗 | transom window 气窗 | transom 气窗
noun
1. a window above a door that is usually hinged to a horizontal crosspiece over the door
Synonym: transom fanlight