clamshell

1. The shell of a clam.

   the shell of a clam

2. Any object that, in (literal or figurative) resemblance to the shell of a clam, has a hinge on one edge and two surfaces that close together.

3. Any object that, in (literal or figurative) resemblance to the shell of a clam, has a hinge on one edge and two surfaces that close together.

   A dredging bucket with hinges like the shell of a clam.

   a dredging bucket with hinges like the shell of a clam

4. In food service, the closing box (usually styrofoam but sometimes cardboard) given to consumers with takeout food.

5. A hinged case for a video tape, cassette tape, or video game cartridge.

6. (US, dated, derogatory, slang)A person's mouth.

   Shut your clamshell!

7. (attributive, often)Any object with some other resemblance to either one or both halves of the shell of a clam.

8. Any object with some other resemblance to either one or both halves of the shell of a clam.

   (attributive, often)An amphitheater, especially an outdoor amphitheater; the semi-circular acoustic backdrop behind and above the performers.

regular