'Lithocyst' definitions:

Definition of 'Lithocyst'

From: 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]