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nounrespiratory organ of aquatic animals that breathe oxygen dissolved in water
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Definition that contains branchia
- nudibranch any of various marine gastropods of the suborder Nudibranchia having a shell-less and often beautifully colored body
- order belemnoidea order of extinct dibranchiate cephalopods related to the surviving spirulas
- sea slug any of various marine gastropods of the suborder Nudibranchia having a shell-less and often beautifully colored body
- belemnoidea order of extinct dibranchiate cephalopods related to the surviving spirulas