Defn: 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.]
DORSIBRANCHIATE
Dor`si*bran"chi*ate, a. (Zoöl.)
Defn: Having branchiæ along the back; belonging to the Dorsibranchiata. — n.
Defn: One of the Dorsibranchiata.
DORSIFEROUS
Dor*sif"er*ous,. Etym: [Dorsum + -ferous; cf. F. dorsifère.] (Biol.)
Defn: Bearing, or producing, on the back; — applied to ferns which produce seeds on the back of the leaf, and to certain Batrachia, the ova of which become attached to the skin of the back of the parent, where they develop; dorsiparous.
DORSIMESON
Dor`si*mes"on, n. Etym: [Dorsum + meson.]
Defn: (Anat.) See Meson.
DORSIPAROUS
Dor*sip"a*rous, a. Etym: [Dorsum + L. parere to bring forth.] (Biol.)
Defn: Same as Dorsiferous.