shellfish
/ˈʃɛlˌfɪʃ/
noun
- An aquatic animal that has a shell, such as a crab, lobster, shrimp, clam, oyster, or mussel, often used as food.
- Many people are allergic to shellfish like shrimp and crab.
- We ordered a platter of steamed shellfish at the seafood restaurant.
- The tide pools were full of small shellfish clinging to the rocks.