otolith

• POS: Noun
• HYPHEN: o=to=lith

CIDE DICTIONARY

otolith, n. [Oto- + -lith, -lite.].

 One of the small bones or particles of calcareous or other hard substance in the internal ear of vertebrates, and in the auditory organs of many invertebrates; an ear stone. Collectively, the otoliths are called ear sand and otoconite.  [1913 Webster]

OXFORD DICTIONARY

otolith, n. any of the small particles of calcium carbonate in the inner ear.

Derivative

otolithic adj.