Lithocyst

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Lithocyst \Lith"o*cyst\ (l[i^]th"[-o]*s[i^]st), n. [Litho- +
     cyst.] (Zool.)
     A sac containing small, calcareous concretions (otoliths).
     They are found in many Medus[ae], and other invertebrates,
     and are supposed to be auditory organs.
     [1913 Webster]