noun
cavity in the petrous part of the temporal bone that contains the membranous labyrinth
• Syn: ↑osseous labyrinth
• Hypernyms: ↑structure, ↑anatomical structure, ↑complex body part, ↑bodily structure, ↑body structure
• Part Holonyms: ↑inner ear, ↑internal ear, ↑labyrinth
Useful english dictionary. 2012.