dorsibranchiata

dor`si`bran`chi`a´ta


n. pl.1.(Zool.) A division of chætopod annelids in which the branchiæ are along the back, on each side, or on the parapodia. [See Illusts. under Annelida and Chætopoda.]
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.