
1) Auditory system
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https://www.crosswordclues.com/clue/otolith

1) Earstone
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https://www.crosswordclues.com/clue/otolith

An otolith (οτο-, oto-, ear + λιθος, lithos, a stone), also called statoconium or otoconium, is a structure in the saccule or utricle of the inner ear, specifically in the vestibular labyrinth of vertebrates. The saccule and utricle, in turn, together make the otolith organs. They are sensitive to gravity and linear acceleration. Because o...
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http://en.wikipedia.org/wiki/Otolith

calcium concretion in inside of vertebrate's ear to aid in equilibrium
Found on
http://phrontistery.info/o.html

• (n.) Alt. of Otolite
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http://thinkexist.com/dictionary/meaning/otolith/

The ear bone of a fish. The age of a fish can be determined by counting the layers in the otolith, much like the rings of a tree.
Found on
http://www.azgfd.gov/h_f/fishing_glossary.shtml

(from the article `inner ear`) ...of the organ of Corti. The utricle and saccule each contain a macula, an organ consisting of a patch of hair cells covered by a gelatinous ... ...pressures; e.g., those of gravitational forces. Hair cells within these structures are covered by a gelatinous cap in which are embedded small ... Both pai...
Found on
http://www.britannica.com/eb/a-z/o/38

A calcified structure used as part of the balance system in bony fishes. The mineral structure changes over time and annual banding can be seen in the otolith allowing scientists to estimate the age of a fish. More InformationÂ
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http://www.encyclo.co.uk/local/20545

(o´to-lith″) statolith.
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http://www.encyclo.co.uk/local/21001

A calcareous particle found in the inner ear of certain vertebrates (fish, for example).
Found on
http://www.encyclo.co.uk/local/22141

otolith A particle of calcium carbonate found in the inner ear of vertebrates and involved in sensory perception.
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http://www.wordinfo.info/words/index/info/view_unit/1538/4

Greek otos = ear, and lithos = stone; hence, calcareous particles in the utricle and saccule of the membranous labyrinth.
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https://www.encyclo.co.uk/local/21450

A calcareous structure found in the inner ear of fish and involved in orientation and hearing. In some species, distinctive growth lines can provide information on fish age because the otolith grows in proportions to body growth.
Found on
https://www.encyclo.co.uk/local/22504

a calcareous concretion in the internal ear of vertebrates. · statolith (def. 1).
Found on
https://www.infoplease.com/dictionary/otolith
No exact match found.