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An internal supporting skeleton, derived from the mesoderm, that is characteristic of vertebrates and certain invertebrates.
en′do·skel′e·tal (-ĭ-tl) adj.
(Zoology) the internal skeleton of an animal, esp the bony or cartilaginous skeleton of vertebrates. Compare exoskeleton
en•do•skel•e•ton(ˌɛn doʊˈskɛl ɪ tn)
the internal skeleton or framework of the body of an animal (opposed to exoskeleton).
A supporting framework in an animal that is contained inside the body. Humans and many other vertebrate animals have bony endoskeletons. Certain invertebrate animals, such as sponges, have endoskeletons made up of needle-like structures called spicules. Compare exoskeleton.
endoskeleton- Contained entirely within the body of an animal, like that of mammals.
See also related terms for mammal.
An internal skeleton, usually made of bone and cartilage.
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|Noun||1.||endoskeleton - the internal skeleton; bony and cartilaginous structure (especially of vertebrates)|
craniate, vertebrate - animals having a bony or cartilaginous skeleton with a segmented spinal column and a large brain enclosed in a skull or cranium
scapula, shoulder blade, shoulder bone - either of two flat triangular bones one on each side of the shoulder in human beings
skeletal system, systema skeletale, skeleton, frame - the hard structure (bones and cartilages) that provides a frame for the body of an animal
appendicular skeleton - the part of the skeleton that includes the pectoral girdle and the pelvic girdle and the upper and lower limbs
axial skeleton - the part of the skeleton that includes the skull and spinal column and sternum and ribs
arm bone - a bone in the arm
leg bone - a bone of the leg