Word Study
opinioned |
opinionist |
opiparous |
opisometer |
opisthion |
opisthobranchia
| opisthobranchiata
| opisthobranchiate
| opisthocœlian
| opisthocœlous
| opisthocomidae
opisthobranchia
WORDNET DICTIONARY
Noun opisthobranchia has 1 sense
- opisthobranchia(n = noun.animal) subclass opisthobranchia - gastropods having the gills when present posterior to the heart and having no operculum: includes sea slugs; sea butterflies; sea hares; Array is a member of class gasteropoda, class gastropoda, gasteropoda, gastropoda
is a kind of class
CIDE DICTIONARY
opisthobranchia, n. pl. [NL., from Gr. 'o`pisqen behind + gills.].
A division of gastropod Mollusca, in which the breathing organs are usually situated behind the heart. It includes the tectibranchs and nudibranchs. [1913 Webster]
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