A "clamshell" refers to a type of packaging or design that resembles the two halves of a clam shell. It is commonly used for food items, electronics, and other products, providing protection and visibility. Clamshell packaging is typically made from plastic or cardboard and can be easily opened and closed, making it convenient for consumers. In technology, a clamshell design often describes devices like laptops or mobile phones that open and close along a hinge. This design allows for a compact form factor, protecting the screen and keyboard when not in use. Examples include the MacBook and various smartphones.