n. A small particle, comprised mainly of calcium carbonate, found in the inner ear of vertebrates, being part of the balance sense.
the GNU version of the Collaborative International Dictionary of English
n. 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.
The Century Dictionary and Cyclopedia
n. A calcareous concretion within the membranous labyrinth of the ear.
n. One of the proper otic bones of some animals, as certain fishes; an otosteon. See cuts under Esox and Python.
n.
Word Usage
"Find an otolith expert and he or she will be able to give you a menu ..."