endoskeleton

noun
en·do·skel·e·ton | \ˌen-dō-ˈske-lə-tən \

Definition of endoskeleton 

: an internal skeleton or supporting framework in an animal

Other Words from endoskeleton

endoskeletal \ˌen-dō-ˈske-lə-tᵊl \ adjective

First Known Use of endoskeleton

circa 1847, in the meaning defined above

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The first known use of endoskeleton was circa 1847

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endoskeleton

noun
en·do·skel·e·ton | \ˌen-dō-ˈskel-ət-ᵊn \

Medical Definition of endoskeleton 

: an internal skeleton or supporting framework in an animal — compare exoskeleton

Other Words from endoskeleton

endoskeletal \-ət-ᵊl \ adjective

More from Merriam-Webster on endoskeleton

Britannica.com: Encyclopedia article about endoskeleton

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