OPISTHOBRANCHIATA Meaning of OPISTHOBRANCHIATA in English ̷ ̷ˌ ̷ ̷ ̷ ̷ˌ ̷ ̷ ̷ ̷ˈäd.ə, -ād.ə synonym of opisthobranchia Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012