1) American slang for the mouth 2) Cape Cod ashtray 3) Dredging bucket 4) Dredging device 5) Shell 6) The shell of a clam 7) Type of container 
[container] A clamshell is a one-piece container consisting of two halves joined by a hinge area which allows the structure to come together to close. Clamshells are often made of a shaped plastic material, in a way that is similar to a blister pack. The name of the clamshell is taken from the shell of a clam, which it resembles both in for...
(from the article `power shovel`) ...area and tips its contents. On soft and watery land, particularly in building power dams, the long reach of the dragline is more effective than ...
Packaging that is more "collector friendly," meaning that it is resistant to dents and bending, but also indescribably hard to open.
Clamshell is American slang for a one dollar bill.
[n] - a dredging bucket with hinges like the shell of a clam 2. [n] - the shell of a clam
noun the shell of a clam
A two piece lid. See Style 'CS-3' & 'CS-4' in Custom Reference Guide for further description.
the shell of a clam. · · Also calledclam&prim;shell buck&sec;et.a dredging bucket opening at the bottom, consisting of two similar pieces hinged together at the top. · a machine equipped with such a bucket.