FENESTRA
- a perforation [n FENESTRAS or FENESTRAE]
- A perforation in a forceps blade
- A small natural hole or opening, esp. in a bone. The mammalian middle ear is linked by the fenestra ovalis to the vestibule of the inner ear, and by the fenestra rotunda to the cochlea
- An artificial opening
- An opening in a bandage or cast
- A hole made by surgical fenestration