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modiolus Syllabification: mo·di·o·lus
Pronunciation: /məˈdīələs/

Definition of modiolus in English:

noun (plural modioli-ˌlī-ˌlē)

The conical central axis of the cochlea of the ear.
Example sentences
  • Specifically, we find that the TM is more rigid toward the inner zones where the tissue attaches to the modiolus and generally softest in the neighborhood of the sensory hair cells.
  • The bulla was opened to expose the cochlea, the bony capsule was removed, and the apical turn of the organ of Corti was dissected from the modiolus.
  • The inferolateral boundaries extend downward and medially from the modioli to the mentolabial sulcus.


Early 19th century: from Latin, literally 'nave of a wheel'.

Definition of modiolus in:
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