clathrate

adjectives

having a latticelike structure pierced with holes or windows
designating or relating to a compound in which one component is physically enclosed within the crystal structure of another
is similar to
closed in or surrounded or included within
"an enclosed porch"; "an enclosed yard"; "the enclosed check is to cover shipping and handling"
domain category
the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions