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

Origin of otolith

First recorded in 1825–35; oto- + -lith
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Historical Examples of otolith

British Dictionary definitions for otolith



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




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.
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