- Anatomy, Zoology. a calcareous concretion in the internal ear of vertebrates.
- statolith(def 1).
Origin of otolith
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for otolith
The otolith apparatus of the cat can render it no service in free descent.Popular scientific lectures
The dorsal half of the otolith is pigmented: the ventral half is without pigment.
The otolith is an oval body with its dorsal half pigmented, and its ventral half clear and highly refractive.
The otolith however is developed from a single cell on the dorsal and right side of the brain.
In Pleurobrachia there is at first only one otolith at each corner.The Works of Francis Maitland Balfour, Volume II (of 4)
Francis Maitland Balfour
- 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)
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
- Any of numerous minute calcareous particles found in the inner ear of certain lower vertebrates and in the statocysts of many invertebrates.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.