noun. ['ˈdɔrmɝ'] a gabled extension built out from a sloping roof to accommodate a vertical window.
1. Noun, singular or mass Choose the shape of the dormer window you would like to use in your home. 2. Adjective Consequently, it is crucial to seal dormer windows properly. 3. Verb, past participle This style of roof often has dormer windows extending from it.
