shellfish

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shellfish

(shĕl′fĭsh′)
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.

shell′fish′ing n.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

shellfish

(shel′fish″)
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.
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