Definition of fenestration in US English:



  • 1The arrangement of windows and doors on the elevations of a building.

    • ‘The architects have responded positively to the museum's neighbour, applying the regular pattern of its fenestration to the adjacent administration offices.’
    • ‘A few unexpected moves push these time-honored forms into the modern world: extreme angles to the roof pitches, compressed fenestration with staggered window sizes, and square dormers.’
    • ‘Because these new second-story spaces do not touch the original brick enclosing wall, the building's fenestration remains intact.’
    • ‘Extensive fenestration and clerestory windows maximize natural light and provide views of the adjacent park and the city down oak-lined 36th Street.’
    • ‘This fenestration of mullions forms an arcading at plaza level.’
    1. 1.1Zoology Botany The condition of being fenestrate.
      • ‘The lepospondyls are represented by the aistopods, which were already highly specialized in the fenestration of the skull, the great elongation of the vertebral column, and the complete loss of limbs.’
      • ‘The trait of temporal fenestration has been used extensively in phylogenetic studies of amniotes, but unfortunately, it is not a reliable guide to their evolution.’
      • ‘Some workers suggest that this lack of fenestration is a secondary condition and that turtles should be placed in the Diapsida, but the diapsid vs. anapsid controversy is far from settled.’
      • ‘Turtles reflect the ancestral ‘anapsid’ condition and lack temporal fenestration.’
      • ‘It may even represent an early form of skull fenestration for jaw muscles.’
    2. 1.2Medicine A surgical operation in which a new opening is formed, especially in the bony labyrinth of the inner ear to treat certain types of deafness.
      • ‘This fenestration appears to ameliorate the postoperative course and diminish the incidence of postoperative effusions.’
      • ‘Optic nerve sheath fenestration is done first by an incision into the orbit.’
      • ‘Occasionally the cysts cause pain because of distension of the liver capsule, and such patients may require cyst fenestration or partial liver resection.’
      • ‘Moreover, in the method utilising fenestration, the tube was left in place for 2-3 days for observation prior to permanently removing it.’