the design and disposition of windows and other exterior openings of a building.

Furniture . an ornamental motif having the form of a blind arcade or arch, as in medieval cabinetwork.

Medicine/Medical, Surgery .

a perforation in a structure.

an operation to effect such an opening.

Also called fenestration operation, Lempert operation. the creation of an artificial opening into the labyrinth of the ear to restore hearing loss from otosclerosis.