fenestration
noun
fen·es·tra·tion ˌfe-nə-ˈstrā-shən 
1
: the arrangement, proportioning, and design of windows and doors in a building
2
: an opening in a surface (such as a wall or membrane)
3
: the operation of cutting an opening in the bony labyrinth between the inner ear and tympanum to replace natural fenestrae that are not functional
Example Sentences
Recent Examples on the Web With the flip of a switch, the entire upper half of the car deconstructs like an origami swan unfolding, and once the clamshells, flaps and fenestration settle down, a sleek convertible reveals itself. 
Wesley Tudor, Robb Report, 1 Feb. 2022 They were also tasked with installing the almost 7,000-square-feet of triple-pane, sliding steel thermal doors and windows from famed Italian fenestration experts Brombal. Howard Walker, Robb Report, 14 Dec. 2021 The machines are then able to effortlessly create the fenestration and conduits for doors, windows, electrical, plumbing, mechanical and information technology infrastructure. Jennifer Castenson, Forbes, 23 June 2021 The Bauhaus was top of the list, and Johnson, too, fell hard for Gropius’s unadorned facades and industrial fenestration. Jason Farago, New York Times, 7 Sep. 2017 The surrounding decoration stretches and compresses to suit the ever-changing fenestration. Blake Gopnik, New York Times, 1 Oct. 2017
Wesley Tudor, Robb Report, 1 Feb. 2022 They were also tasked with installing the almost 7,000-square-feet of triple-pane, sliding steel thermal doors and windows from famed Italian fenestration experts Brombal. Howard Walker, Robb Report, 14 Dec. 2021 The machines are then able to effortlessly create the fenestration and conduits for doors, windows, electrical, plumbing, mechanical and information technology infrastructure. Jennifer Castenson, Forbes, 23 June 2021 The Bauhaus was top of the list, and Johnson, too, fell hard for Gropius’s unadorned facades and industrial fenestration. Jason Farago, New York Times, 7 Sep. 2017 The surrounding decoration stretches and compresses to suit the ever-changing fenestration. Blake Gopnik, New York Times, 1 Oct. 2017 Word History
First Known Use
1846, in the meaning defined at sense 1
Medical Definition
fenestration
noun
fen·es·tra·tion ˌfen-ə-ˈstrā-shən
1
a
: a natural or surgically created opening in a surface
b
: the presence of such openings
2
: a surgical procedure that involves cutting an opening in the bony labyrinth between the inner ear and tympanum to replace natural fenestrae that are not functional (as in otosclerosis)