屋顶窗
老虎窗

Dormer \Dor"mer\, or Dormer window \Dor"mer win"dow\, n.
[Literally, the window of a sleeping apartment. F. dormir to
sleep. See {Dormant}, a. & n.] (Arch.)
A window pierced in a roof, and so set as to be vertical
while the roof slopes away from it. Also, the gablet, or
houselike structure, in which it is contained.