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a construction with a gable roof and a window at its outer end that projects from a sloping roof
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005


A structure projecting from a sloping roof, usually housing a vertical window that is placed in a small gable, or containing a ventilating louver.

arched dormer

A dormer that has a semi-cylindrical-shaped roof; the head of the window in the dormer may be either rounded or flat.

eyebrow dormer

A low dormer on the slope of a roof. It has no sides; the roof is carried over it in a continuous wavy line.

hipped dormer

A dormer whose roof has a miniature hipped appearance in front, dying into the main roof surface at the back.

inset dormer

A dormer that is partially set below a sloping roof, unlike the usual dormer that projects entirely above the sloping roof. Same as recessed dormer.

recessed dormer

A dormer with all or part of the window set back into the roof surface, resulting in the sill being lower than the roof.

shed dormer

A dormer whose eave line is parallel to the main eave line of the roof, and whose flat roof plane slopes downward in a direction away from the ridge line of the main roof.

wall dormer

A dormer whose face is integral with the face of the wall below.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved

dormer, dormer window

A structure projecting above a sloping roof, usually housing a vertical window. It is not part of the roof structure but is framed separately, and often provides daylight and ventilation for a room located in a garret or loft space. For definitions and illustrations of specific types, see arched dormer, deck dormer, eyebrow dormer, flat-head dormer, gable dormer, hipped dormer, inset dormer, mission dormer, oval dormer, Palladian dormer, pedimented dormer, pitched-roof dormer, pointed dormer, polygonal dormer, recessed dormer, ridge dormer, round dormer, segmental dormer, shed dormer, through-the-cornice dormer, triangular dormer, wall dormer, watershed dormer.

dormer window, dormer

dormer window
A vertical window which projects from a sloping roof, placed in a small gable.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in classic literature ?
And the Hospital Orderly was so satisfied with the justice of the punishment that he did not even order Private Dormer back to his cot.
Neighbours said the dormer windows would be out of keeping and additions to designs would mean the development appeared three storey.
Matt Dormer, Tory leader of Redditch Council agreed to a 150% pay increase.
Sweden-based Dormer Pramet, a division of Sandvik Machining Solutions, has announced it has acquired US-based Wetmore Tool and Engineering, a manufacturer of round tools specialized for the aerospace industry, the company said.
Dormer Pramet, a division within Sandvik Machining Solutions, has acquired Wetmore Tool & Engineering, a United States-based manufacturer of round tools specialised for the aerospace industry.
This four-bedroom dormer bungalow onHartley Crescentis on the market with Purple Bricks for [pounds sterling]400,000 - and it hides an unusual feature that makes it stand out.
A compromise solution has been reached in a long-running saga over a controversial dormer at a house inHandbridge.
The acclaimed actor, 57, appears in a new global campaign for Nespresso, alongside GoT actress Natalie Dormer.
Co-starring in the epic adventure is one of the silver screen's most famous queens, Natalie Dormer, and the two feature in the largest global Nespresso campaign to date, launching in more than 30 countries.
She may no longer be a part of the "Game of Thrones" universe following her character's literally explosive demise in the Season 6 finale, but that doesn't mean Natalie Dormer doesn't have any clue what will happen when the show launches its final six episodes in 2019.
Actress Natalie Dormer says she always wanted to work with her fiance and director Anthony Byrne because she had seen how good he was at his job.