| aorticopulmonary window | A small congenital opening between the aorta and pulmonary artery about 1 cm above the semilunar valves, e.g., aorticopulmonary window. Synonym: aorticopulmonary window. (05 Mar 2000) |
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| optic nerve sheath fenestration | The cutting of a window in the dura of the optic nerve sheath to relieve papilledema and prevent further loss of optic nerve fibres. (05 Mar 2000) |
| tracheal fenestration | A surgical procedure to create an epithelialised mucocutaneous opening from the neck into the trachea. (05 Mar 2000) |
| fenestration | 1. The arrangement and proportioning of windows; used by modern writers for the decorating of an architectural composition by means of the window (and door) openings, their ornaments, and proportions. 2. <anatomy> The state or condition of being fenestrated. Source: Websters Dictionary (01 Mar 1998) |
| fenestration, labyrinth | The surgical creation of a new opening in the labyrinth of the ear for the restoration of hearing in cases of otosclerosis. (12 Dec 1998) |
| fenestration operation | A rarely used surgical procedure producing an opening from the external auditory canal to the membranous labyrinth to improve hearing in hearing impairment of the conduction type. (05 Mar 2000) |