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Meaning of exoskeleton

ex•o•skel•e•ton

Pronunciation: (ek"sō-skel'i-tn), [key]
— n. Zool.
  1. an external covering or integument, esp. when hard, as the shells of crustaceans (opposed to endoskeleton).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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