Mollusk (noun)

A type of invertebrate animal, such as a snail, clam, or squid, characterized by a soft body and a protective shell, often found in water.

Origin:

Derived from the latin word "molluscus" meaning "soft".

Examples:

1. The beach was covered in mollusk shells.
2. Mollusks are a diverse group of animals that include snails, clams, squid, octopus and many others.
3. Mollusks are characterized by their soft body and protective shell.
4. Mollusks are found in a wide range of environments, from freshwater to the deep sea.
5. Mollusk shells are often used for decorative purposes or as a source of pearls.