WordNet Dictionary
Webster's 1913 Dictionary\O*pis`tho*bran"chi*a\, Opisthobranchiata
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| Matching Terms: | opisthobranchiate | ||
| WordNet Dictionary | |||
| Definition: | [n] gastropods having the gills when present posterior to the heart and having no operculum: includes sea slugs; sea butterflies; sea hares | ||
| Synonyms: | subclass Opisthobranchia | ||
| See Also: | class, class Gasteropoda, class Gastropoda, Gasteropoda, Gastropoda, Nudibranchia, order Nudibranchia | ||
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| Webster's 1913 Dictionary | |||
| Definition: | \O*pis`tho*bran"chi*a\, Opisthobranchiata | ||
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