† pygobranchiateadj. [ < pygo-comb. form + -branchiatecomb. form, after scientific Latin Pygobranchia, former group name (J. E. Gray 1821, in London Med. Repository15 234)] ZoologyObsoleterare of or belonging to the former group Pygobranchia of gastropod molluscs having gills arranged round the anus (corresponding to the nudibranch suborder Doridacea).Apparently only attested in dictionaries or glossaries.
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1890 Cent. Dict.Pygobranchiate, having gills around the anus.