- the internal skeleton of an animal, esp the bony or cartilaginous skeleton of vertebrates
Compare exoskeleton
WordReference Random House Unabridged Dictionary of American English © 2026
en•do•skel•e•ton
(en′dō skel′i tn),USA pronunciation n. [Zool.]
en′do•skel′e•tal, adj.
- Zoologythe internal skeleton or framework of the body of an animal (opposed to exoskeleton).
- endo- + skeleton 1830–40
Collins Concise English Dictionary © HarperCollins Publishers::
endoskeleton /ˌɛndəʊˈskɛlɪtən/ n
'endoskeleton' also found in these entries (note: many are not synonyms or translations):