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Noun: Opisthobranchia
  1. Gastropods having the gills when present posterior to the heart and having no operculum: includes sea slugs; sea butterflies; sea hares
    - subclass Opisthobranchia

Type of: class

Part of: class Gasteropoda, class Gastropoda, Gasteropoda, Gastropoda

Encyclopedia: Opisthobranchia

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ophthalmoscope
ophthalmoscopy
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Opiliones
opine
opinion
opinion poll
opinionated
opinionative
opioid
Opisthobranchia
Opisthocomidae
Opisthocomus
Opisthocomus hoazin
Opisthognathidae
opisthognathous
opisthorchiasis
opisthotonos
opium
opium addict
opium den