shellbound

shellbound

(ˈʃɛlˌbaʊnd)
adj
encased in, or confined to, a shell
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Octopi are shellfish with no external shell and precious little else for most to relate them to their shellbound kin such as mussels and oysters and cockles and the like.
Security Lockdowns Leave Many Nature Destinations Inaccessible
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