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Also found in: Medical.
Related to otolithic organs: utriculus, saccule


One of the small calcareous particles found in the inner ear of many vertebrates, especially fishes, which are involved in determining body orientation and sometimes in perceiving sound.

o′to·lith′ic adj.
References in periodicals archive ?
In 1998, NASA sent an oyster toadfish into space to investigate the effects of microgravity on the development of otolithic organs.
The contents of the inner ear are removed, including the otolithic organs, especially the utricle with its attached ampullae beneath the horizontal fallopian canal.
These are called the otolithic organs and are responsible for detecting linear acceleration, or movement in a straight line.