Answer: fenestrae

AnswerCrossword Clue
FENESTRAEWindowlike openings
fenestraeA 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
fenestraeAn opening in a bandage or cast
fenestraeA perforation in a forceps blade
fenestraeAn artificial opening
fenestraeA hole made by surgical fenestration