ˈōd. ə lˌith noun
Etymology: French otolithe, from ot- + lithe -lith
: a calcareous concretion in the internal ear of a vertebrate or in the otocyst of an invertebrate that is especially conspicuous in many teleost fishes where they form hard bodies and in most of the higher vertebrates where they are represented by masses of small calcareous otoconia
• oto·lith·ic | ̷ ̷ ̷ ̷|ithik adjective