You searched for: “otolith”
A particle of calcium carbonate found in the inner ear of vertebrates and involved in sensory perception.
This entry is located in the following units: litho-, lith-, -lith, -lithic, -lite, -liths, -lites (page 14) oto-, ot-, -otic + (page 4)
Word Entries at Get Words: “otolith”
otolith (literally, "ear stone")
The earbone of a fish.
The age of a fish is commonly estimated by counting the rings laid down annually in the otolith, much as the age of a tree is determined by counting the rings across its trunk.