>d : a hinged container, case, or cover that opens like the shell of a clam https://www.merriam-webster.com/dictionary/clamshell https://www.merriam-webster.co

>d : a hinged container, case, or cover that opens like the shell of a clam https://www.merriam-webster.com/dictionary/clamshell https://www.merriam-webster.com/dictionary/clamshell