Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Any of a group of marine gastropods characterized by gills located behind the heart, a shell that is reduced or absent, and two pairs of tentacles, and including the sea slugs and the sea butterflies.
from The Century Dictionary.
- noun A member of the Opisthobranchiata.
- Having posterior gills; specifically, of or pertaining to the Opisthobranchiata.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun Any of a large and diverse group of
specialized complexmarine gastropods previously united under Opisthobranchia within theHeterobranchia , characterized by two pairs oftentacles and a singlegill behind and to the right of theheart .
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
[From New Latin Opisthobranchia, former subclass name : Greek opistho-, behind; see opisthognathous + Greek brankhia, gills.]
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Examples
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Aldabra supports little besides tortoises, beach flies, opisthobranch mollusks, and polychaete worms.
The Song of The Dodo David Quammen 2004
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Aldabra supports little besides tortoises, beach flies, opisthobranch mollusks, and polychaete worms.
The Song of The Dodo David Quammen 2004
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