Nudibranchia

Từ điển WordNet v3.1 - WordNet Dictionary

noun

comprising numerous marine gastropod mollusks lacking a shell in the adult state and usually having a body like a slug
• Syn:
order Nudibranchia
• Hypernyms:
animal order
• Member Holonyms:
Opisthobranchia, subclass Opisthobranchia
• Member Meronyms:
sea slug, nudibranch, Aplysiidae, family Aplysiidae, Tethyidae,
family Tethyidae, Hermissenda, genus Hermissenda