'Branchiogastropoda' definitions:

Definition of 'Branchiogastropoda'

From: GCIDE

Branchiogastropoda \Bran`chi*o*gas*trop"o*da\, n. pl. [NL., from Gr. ? gill + E. gastropoda.] (Zool.) Those Gastropoda that breathe by branchi[ae], including the Prosobranchiata and Opisthobranchiata. [1913 Webster]