Clamshellshaped
Clamshellshaped is an adjective used to describe an object or structure that resembles the characteristic shape of a clam shell. This typically implies a two-part, hinged form that can open and close, with each half being roughly symmetrical and often curved. The term is often employed in descriptive contexts when an object's design or form evokes this natural comparison.
Objects that are clamshellshaped might be found in both natural and artificial environments. In nature, examples