dormer window

2 definitions found

dormer window - Collaborative International Dictionary of English v.0.48 :

  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.
     [1913 Webster]

dormer window - WordNet (r) 2.1 (2005) :

  dormer window
      n 1: the window in a gabled extension built to accommodate a
           window
      2: a gabled extension built out from a sloping roof to
         accommodate a vertical window [syn: dormer, dormer   window
         ]