A "clamshell" refers to a type of shellfish with hinged shells that can open and close. It can also refer to a type of container or phone with a design that opens and closes like a clamshell's shells. Full definition
The company has also ditched the traditional clamshell design of past DS systems and made the 2DS a flat, almost tablet - like, piece of hardware. (gamecrazy.com)
Underneath the curvaceous front clamshell hood beats a numbers - matching 4.2 - liter inline - six engine. (automobilemag.com)
One can make out a new mesh grille, a new clamshell bonnet with a recess in the centre and twin air intakes at the sides of the front bumper. (auto.ndtv.com)