jugular wall of middle ear

jug·u·lar wall of mid·dle ear

[TA]
the floor of the tympanic cavity; a thin plate of bone separating the tympanic cavity from the jugular fossa.

jug·u·lar wall of mid·dle ear

(jŭgyū-lăr wawl midĕl ēr) [TA]
Floor of tympanic cavity.