The Collaborative International Dictionary
Branchiogastropoda
Branchiogastropoda \Bran`chi*o*gas*trop"o*da\, n. pl. [NL., from Gr. ? gill + E. gastropoda.] (Zo["o]l.) Those Gastropoda that breathe by branchi[ae], including the Prosobranchiata and Opisthobranchiata.