Synonym for eminentia pyramidalis ... A conical projection posterior to the vestibular window in the middle ear; it is hollow and contains the stapedius muscle. ... Synonym: pyramid of tympanum, pyramidal eminence, pyramis tympani. ... (05 Mar 2000) ... 
the hollow elevation in the inner wall of the middle ear that contains the stapedius muscle.
Type: Term Synonyms: eminentia pyramidalis