exoskeleton

The definition of an exoskeleton is a hard supporting structure on the outside of the body.

(noun)

An example of an exoskeleton is a lobster's shell.

See exoskeleton in Webster's New World College Dictionary

noun

any hard, external, secreted supporting structure, as the shell of an oyster or the cuticle of a lobster

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See exoskeleton in American Heritage Dictionary 4

noun

A hard outer structure, such as the shell of an insect or crustacean, that provides protection or support for an organism.

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