metastructure

noun2

1. •
   A structure that describes another structure.

   • Within any novel, even the most dramatically postmodern ones, there is a metastructure of epistemological assumptions that define the narrative values of the text […] — 1999
2. •
   A structure that has one or several properties similar to those of metamaterials

   • We discuss the possibility of realizing utlrabroadband omnidirectional absorbers and angularly selective coherent thermal emitters based on properly patterned plasmonic metastructures. — 2012