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prosobranch

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noun pros·o·branch \ˈprä-sə-ˌbraŋk\

Definition of prosobranch

plural prosobranchs

  1. :  any of a subclass (Prosobranchia) of gastropod mollusks that have the loop of visceral nerves twisted into a figure eight, the sexes usually separate, and usually an operculum

prosobranch adjective


Origin of prosobranch

New Latin Prosobranchia, from proso- in front (from Greek prosō forward) + branchia gills (from Greek)


First Known Use: 1851


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