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Related to Shell fish: Shellfish poisoning
n. pl. shellfish or shell·fishes
1. Any of various edible aquatic invertebrate animals having a shell, especially mollusks such as clams and oysters, and crustaceans such as lobsters, crabs, and shrimp.
2. An edible mollusk, in contrast to a crustacean: regulations concerning fish, crustaceans, and shellfish.
3. The edible flesh of such animals.
Any of a group of marine animals that include mollusks and crustaceans. Allergic reactions (urticaria, asthma, angioedema, anaphylaxis) to a wide variety of shellfish are among the most common causes of food allergy in humans.
an aquatic animal having a shell; includes molluscs, e.g. oyster, and crustaceans, e.g. shrimp, lobster.
paralytic shellfish poisoning
see paralytic shellfish poisoning.