[fɪˈnɛstrə], (Noun)

Definitions:
- a small natural hole or opening, especially 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


Phrases:

Origin:
early 19th century (as a botanical term denoting a small scar left by the separation of the seed from the ovary): from Latin, literally ‘window’