'Hydrobranchiata' definitions:

Definition of 'Hydrobranchiata'

From: GCIDE
  • Hydrobranchiata \Hy`dro*bran`chi*a"ta\, n. pl. [NL., fr. Gr. "y`dwr water + ? gills.] (Zool.) An extensive artificial division of gastropod mollusks, including those that breathe by gills, as contrasted with the Pulmonifera. -- {Hy`dro*bran"chi*ate}, a. [1913 Webster]