oval window(redirected from fenestra of the vestibule)
Also found in: Dictionary, Thesaurus, Medical.
oval window[′ō·vəl ′win·dō]
The membrane-covered opening into the inner ear of tetrapods, to which the ossicles of the middle ear are connected.
A window in the shape of an ellipse, or in a shape between an ellipse and a circle.See also: French window
A window having the shape of an ellipse or a shape between an ellipse and a circle.