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We found 9 dictionaries with English definitions that include the word subclass opisthobranchia: Click on the first link on a line below to go directly to a page where "subclass opisthobranchia" is defined. General (8 matching dictionaries) subclass Opisthobranchia: Vocabulary.com [home, info] subclass opisthobranchia: Dictionary.com [home, info] Subclass opisthobranchia: Rhymezone [home, info] subclass opisthobranchia: Free Dictionary [home, info] subclass opisthobranchia: Mnemonic Dictionary [home, info] subclass opisthobranchia: WordNet 1.7 Vocabulary Helper [home, info] subclass Opisthobranchia: LookWAYup Translating Dictionary/Thesaurus [home, info] subclass Opisthobranchia: Dictionary/thesaurus [home, info] Computing (1 matching dictionary) subclass Opisthobranchia: Encyclopedia [home, info]

Quick definitions from WordNet (Subclass opisthobranchia) ▸ noun:  gastropods having the gills when present posterior to the heart and having no operculum: includes sea slugs; sea butterflies; sea hares