Noun: dormer window 'dor-mur 'win-dow
- A gabled extension built out from a sloping roof to accommodate a vertical window
"The attic bedroom had a dormer window that provided extra light";
- dormer
- The window in a gabled extension built to accommodate a window
"The attic bedroom featured a charming dormer window"
Derived forms: dormer windows
Type of: window
Encyclopedia: Dormer window