fenestration

noun fen·es·tra·tion \ ˌfe-nə-ˈstrā-shən \

Definition of fenestration

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

Recent Examples of fenestration from the Web

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First Known Use of fenestration

1846

in the meaning defined at sense 1

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Medical Dictionary

fenestration

noun fen·es·tra·tion \ ˌfen-ə-ˈstrā-shən \

medical Definition of fenestration

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)

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