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Definition of endoskeleton

endoskeleton

/ˌɛndoʊˈskɛlətən/
en · do · skel · e · ton
Plural:endoskeletons
•
Adjective:endoskeletal
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endoskeleton Lexical Profile

endoskeleton Game Scores & Validity

• noun

1

An internal supporting skeleton or framework, composed of bone or cartilage, found inside the body of vertebrates and certain other animals.

Example

"Unlike insects, which rely on a hard outer shell for protection, mammals possess a flexible endoskeleton that grows along with their bodies."

2

A rigid internal frame or structural chassis within a robot, animatronic figure, or mechanical device that supports its outer casing.

Example

"The robotics engineers covered the metallic endoskeleton with synthetic skin to make the humanoid machine appear more lifelike."

Synonyms
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Antonyms
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• Rhymes for endoskeleton

• Nearby Words

endorsement
endorser
endoscopy
endoskeleton
endothorax
endothrix
endow

Word Origin & Etymology

Coined in the mid-19th century by combining the Ancient Greek prefix 'endo-' (meaning 'within' or 'inside') with 'skeleton' (from Greek 'skeletos', meaning 'dried up').

Cite this Entry

Wordmom. (2026). Definition of Endoskeleton. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/endoskeleton
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