Shell



Shell was a word used to describe a type of organic matter or something inorganic that had a similar structure.

For example, a turtle's anatomy consisted of a shell, which functioned as a protective armor. Clamshells served a similar function.

Also, an amphibian, bird or reptile's embryo developed inside an eggshell, and peanuts and certain other types of fruits also had shells.

External Link

 * Shell at Wikipedia