endoskeleton

Từ điển WordNet v3.1 - WordNet Dictionary

noun

the internal skeleton;
bony and cartilaginous structure (especially of vertebrates)
• Topics:
vertebrate, craniate
• Hypernyms:
skeletal system, skeleton, frame, systema skeletale
• Part Meronyms:
bone, os, clavicle, collarbone, scapula,
shoulder blade, shoulder bone, appendicular skeleton, axial skeleton, arm bone, leg bone,
joint, articulation, articulatio