dorsibranchiate🔊adjEtymology From dorsi- + branchiate.1Biology, Natural sciences, Zoology Obsolete Having branchiae along the back; belonging to the former order Dorsibranchiata.
dorsibranchiate🔊nounEtymology From dorsi- + branchiate.1Biology, Natural sciences, Zoology Obsolete Any marine worm of the Dorsibranchiata.