modiolus

1. [tA] The central cone-shaped core of spongy bone about which turns the spiral canal of the m.. 2. SYN: m. of angle of mouth. [L., the nave of a wheel]

- m. of angle of mouth [TA] a point near the corner of the mouth where several muscles of facial expression converge. SYN: m. anguli oris [TA], columella cochleae, m. labii, m. (2).

- m. anguli oris [TA] SYN: m. of angle of mouth.

- m. labii SYN: m. of angle of mouth.

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mo·di·o·lus mə-'dī-ə-ləs n, pl -li -.lī a central bony column in the cochlea of the ear

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n.

the conical central pillar of the cochlea in the inner ear.

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mo·di·o·lus (mo-diґo-ləs) [L. “nave,” “hub”] [TA] the central pillar or columella of the cochlea; called also columella cochleae.

Modiolus in a cross-section through the axis of the cochlea.