Oeil-de-boeuf

An ''oeil-de-boeuf'' (; en, "bull's eye"), also ''œil de bœuf'' and sometimes anglicized as ''ox-eye window'', is a relatively small elliptical or circular

window A window is an opening in a wall, door, roof, or vehicle that allows the exchange of light and may also allow the passage of sound and sometimes air. Modern windows are usually glazed or covered in some other transparent or translucent materia ...

, typically for an upper storey, and sometimes set in a roof slope as a

dormer A dormer is a roofed structure, often containing a window, that projects vertically beyond the plane of a pitched roof. A dormer window (also called ''dormer'') is a form of roof window. Dormers are commonly used to increase the usable space ...

, or above a door to let in

natural light Natural Light, sometimes Natty Light, is an American reduced-calorie light lager brewed by Anheuser-Busch since its introduction on July 31, 1977. Its ingredients are listed as water, barley malt, cereal grains, yeast, and hops. One serving cont ...

. Windows of this type are commonly found in the grand architecture of

Baroque The Baroque (, ; ) is a style of architecture, music, dance, painting, sculpture, poetry, and other arts that flourished in Europe from the early 17th century until the 1750s. In the territories of the Spanish and Portuguese empires including t ...

France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...

. The term is also applied to similar round windows, such as those found in

Georgian architecture Georgian architecture is the name given in most English-speaking countries to the set of architectural styles current between 1714 and 1830. It is named after the first four British monarchs of the House of Hanover—George I, George II, Georg ...

in Great Britain, and later

Greek Revival The Greek Revival was an architectural movement which began in the middle of the 18th century but which particularly flourished in the late 18th and early 19th centuries, predominantly in northern Europe and the United States and Canada, but ...

and

Colonial Revival The Colonial Revival architectural style seeks to revive elements of American colonial architecture. The beginnings of the Colonial Revival style are often attributed to the Centennial Exhibition of 1876, which reawakened Americans to the archi ...

styles in North America, so that must be considered part of the usage. The term initially applied to horizontal elliptical windows, but is also used for vertical ones.Burden, Ernest E., ''Illustrated dictionary of architecture'', McGraw-Hill Professional, 2001, p.354, ,
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/ref> The spread is not limited to

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