The Collaborative International Dictionary
Otolite
Otolith \O"to*lith\, Otolite \O"to*lite\, n. [Oto- + -lith, -lite.] (Anat.) 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.
Wiktionary
otolite
n. (alternative form of otolith English)