Dictionary

prosobranch

noun pros·o·branch \ˈprä-sə-ˌbraŋk\
plural pros·o·branchs

Definition of PROSOBRANCH

:  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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