shellfish shellfish /ˈʃɛlˌfɪʃ/

noun

1. Invertebrate having a soft unsegmented body usually enclosed in a shell  ( mollusc , mollusk , shellfish )
   invertebrate having a soft unsegmented body usually enclosed in a shell
   
   
2. Meat of edible aquatic invertebrate with a shell (especially a mollusk or crustacean)  ( shellfish )
   meat of edible aquatic invertebrate with a shell (especially a mollusk or crustacean)
    She enjoyed a delicious shellfish platter at the seaside restaurant.
   She enjoyed a delicious shellfish platter at the seaside restaurant.