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Definition of Lithocyst
1. n. A sac containing small, calcareous concretions (otoliths). They are found in many Medusæ, and other invertebrates, and are supposed to be auditory organs.
Medical Definition of Lithocyst
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1. n. A sac containing small, calcareous concretions (otoliths). They are found in many Medusæ, and other invertebrates, and are supposed to be auditory organs.
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