skeletal

adjectives

of or relating to or forming or attached to a skeleton
"the skeletal system"; "skeletal bones"; "skeletal muscles"
is derived from
pertains to
very thin especially from disease or hunger or cold
"emaciated bony hands"; "a nightmare population of gaunt men and skeletal boys"; "eyes were haggard and cavernous"; "small pinched faces"; "kept life in his wasted frame only by grim concentration"