opisthobranchiate
/əˌpɪsθəˈbraŋkɪeɪt/ /əˌpɪsθəˈbraŋkɪət/Zoology
adjective
= opisthobranch.
Origin
Mid 19th century; earliest use found in Philosophical Transactions of the Royal Society of London. From scientific Latin Opisthobranchiata, subclass name (originally order name; 1851 or earlier) from opistho- + -branchiata.