scala vestibuliscala ves·tib·u·li
nounpl. scalae ves·tib·u·lo·rum
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.
Origin of scala vestibuliNew Latin scala vestibul&imacron; : Latin scala, staircase (from its spiral structure ) + Latin vestibul&imacron;, genitive of vestibulum, vestibule.