Window | Description & Facts | Britannica
https://www.britannica.com/technology/window
WebOct 6, 2023 · louver. window, opening in the wall of a building for the admission of light and air; windows are often arranged also for the purposes of architectural decoration. Since early times, the openings have been filled with stone, wooden, or iron grilles or lights (panes) of glass or other translucent material such as mica or, in the Far East, paper.
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