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.

 

© Webster 1913.

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