| lithocyst | <zoology> A sac containing small, calcareous concretions (otoliths). They are found in many Medusae, and other invertebrates, and are supposed to be auditory organs. Origin: Litho- + cyst. Source: Websters Dictionary (01 Mar 1998) |
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| lithocystotomy |
Incision of the bladder to remove a kidney stone.
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