[ oht-l-ith ]
/ ˈoʊt l ɪθ /


Anatomy, Zoology. a calcareous concretion in the internal ear of vertebrates.

Origin of otolith

First recorded in 1825–35; oto- + -lith
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for otolith

British Dictionary definitions for otolith


/ (ˈəʊtəʊˌlɪθ) /


any of the granules of calcium carbonate in the inner ear of vertebrates. Movement of otoliths, caused by a change in position of the animal, stimulates sensory hair cells, which convey the information to the brain
another name for statolith (def. 1)
Derived Formsotolithic, adjective
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

Medicine definitions for otolith


[ ōtə-lĭth′ ]


Any of numerous minute calcareous particles found in the inner ear of certain lower vertebrates and in the statocysts of many invertebrates.
Related formso′to•lithic adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.