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Definition of Nudibranchiata
1. n. pl. A division of opisthobranchiate mollusks, having no shell except while very young. The gills are naked and situated upon the back or sides. See Ceratobranchia.
Medical Definition of Nudibranchiata
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1. n. pl. A division of opisthobranchiate mollusks, having no shell except while very young. The gills are naked and situated upon the back or sides. See Ceratobranchia.
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