Any of various devices that consist of two parts attached by a hinge and that open and close like a clamshell, especially a digging or dredging machine with a bucket that has hinged jaws or a handheld electronic device.
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The shell of a clam.
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A dredging bucket, hinged like the shell of a clam.
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Designating or of any of certain manufactured products designed to open and close by a hinge along one edge.