hiˈnīd.(ˌ)ēz noun
Usage: capitalized
Etymology: New Latin, from Latin hinnus + New Latin -ites
: a genus of scallops (family Pectinidae) containing forms that become attached to the substrate with consequent thickening and modification of the shell to resemble that of an oyster and including the rock oyster ( H. giganteus ) of the Pacific coast of No. America