Pronunciation: (fen"u-strā'shun), [key]
1. the design and disposition of windows and other exterior openings of a building.
2. Furniture.an ornamental motif having the form of a blind arcade or arch, as in medieval cabinetwork.
3. Med., Surg.
a. a perforation in a structure.
b. an operation to effect such an opening.
c. Also called fenestra'tion opera"tion, Lempert operation. the creation of an artificial opening into the labyrinth of the ear to restore hearing loss from otosclerosis.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.