Definition of scala vestibuli in US English:

scala vestibuli

noun

Anatomy
  • The upper bony passage of the cochlea.

    • ‘Since it is confluent with the perilymph around the rest of the vestibular apparatus, this compartment is called the scala vestibuli.’
    • ‘Vibrations of the oval window are transmitted to the perilymph in the scala vestibuli and across the vestibular membrane to the endolymph of the cochlear duct.’

Origin

Early 18th century: from Latin, literally ‘ladder of the vestibule’.

Pronunciation

scala vestibuli

/ˌskālə veˈstibyəlē/