scala tympani

 
Pronunciation: /ˌskeɪlə tɪmˈpɑːni/

noun (plural scalae tympani /ˌskeɪliː, ˌskeɪlʌɪ/)

Anatomy
  • the lower bony passage of the cochlea.

Origin:

early 18th century: from Latin, literally 'ladder of the tympanum'