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[moh-dahy-uh-luh s, muh-] /moʊˈdaɪ ə ləs, mə-/
noun, plural modioli
[moh-dahy-uh-lahy, muh-] /moʊˈdaɪ əˌlaɪ, mə-/ (Show IPA).
the central, conical axis of the cochlea of the ear.
Origin of modiolus
1685-95; < New Latin, Latin: nave of a wheel bucket, drinking vessel, equivalent to modi(us) a dry measure (perhaps derivative of modus mode1) + -olus -ole1
Related forms
modiolar, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for modiolus


/məʊˈdaɪəʊləs; mə-/
noun (pl) -li (-ˌlaɪ)
the central bony pillar of the cochlea
Word Origin
C19: New Latin, from Latin: hub of a wheel, from modus a measure
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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modiolus in Medicine

modiolus mo·di·o·lus (mō-dī'ə-ləs)
n. pl. mo·di·o·li (-lī')
The central conical bony core of the cochlea of the ear.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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