Opisthobranchia love

Help Wordnik hunt for a million missing words by backing our Kickstarter!



from the GNU version of the Collaborative International Dictionary of English

  • n.pl. A division of gastropod Mollusca, in which the breathing organs are usually situated behind the heart. It includes the tectibranchs and nudibranchs.

from The Century Dictionary and Cyclopedia

  • Same as Opisthobranchiata.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. gastropods having the gills when present posterior to the heart and having no operculum: includes sea slugs; sea butterflies; sea hares


Sorry, no etymologies found.



Log in or sign up to get involved in the conversation. It's quick and easy.