Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun shellfish

2 senses of shellfish

Sense 1
shellfish -- (meat of edible aquatic invertebrate with a shell (especially a mollusk or crustacean))
       => seafood -- (edible fish (broadly including freshwater fish) or shellfish or roe etc)

Sense 2
mollusk, mollusc, shellfish -- (invertebrate having a soft unsegmented body usually enclosed in a shell)
       => invertebrate -- (any animal lacking a backbone or notochord; the term is not used as a scientific classification)