Medical Definition of Opisthobranchiata
1.
A division of gastropod Mollusca, in which the breathing organs are usually situated behind the heart. It includes the tectibranchs and nudibranchs.
Origin: NL, from Gr. Behind + gills.
Source: Websters Dictionary
(01 Mar 1998)
Lexicographical Neighbors of Opisthobranchiata
Other Resources:
