noun \ˈklam-ˌshel\

Definition of CLAMSHELL

:  the shell of a clam
a :  a bucket or grapple (as on a dredge) having two hinged jaws
b :  an excavating machine having a clamshell
c :  either of a pair of doors (as in an airplane tail) that open out and away from each other
d :  a hinged container, case, or cover that opens like the shell of a clam

First Known Use of CLAMSHELL

circa 1520


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