Crustacean (noun)

A type of animal that has a hard outer shell, such as a crab, lobster, or shrimp.

Origin:

Late 17th century: from latin crustaceus, from crusta "shell".

Examples:

1. The ocean was teeming with various types of crustaceans.
2. The crustacean was served with melted butter.
3. The scientist studied the behavior of crustaceans.
4. The crustacean was an important source of food for many coastal communities.
5. The chef was skilled in preparing various dishes with crustaceans.