scala ves·tib·u·li 
(vĕ-stĭbyə-lī′)
(vĕ-stĭbyə-lī′)n. pl. scalae ves·tib·u·lo·rum (-lôrəm)
The uppermost of the three divisions of the spiral cavity winding around the modiolus of the cochlea in the inner ear. It is filled with perilymph and receives vibrations from the stapes.
[New Latin scāla vestibulī : Latin scāla, staircase (from its spiral structure ) + Latin vestibulī, genitive of vestibulum, vestibule.]
- downstage
- downstairs
- downstate
- downstater
- downstream
- downswing
- Down syndrome
- down the drain
- down the hatch
- down the line
- down the road
- down the tube
- down the tubes
- down the tubes/tube
- down the wind
- downtick
- downtime
- down-to-earth
- down to the wire
- downtown
- downtrend
- downtrodden
- downturn
- down under
- downward