(n.) The hardened parts of the external integument of an animal, including hair, feathers, nails, horns, scales, etc.,as well as the armor of armadillos and many reptiles, and the shells or hardened integument of numerous invertebrates; external skeleton; dermoskeleton.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). exoskeleton. Retrieved September 20, 2026, from http://smartdefine.org/exoskeleton/definitions/2005986 |
| Chicago | Webster's. 2011. "exoskeleton" http://smartdefine.org/exoskeleton/definitions/2005986 (accessed September 20, 2026). |
| Harvard | Webster's 2011, exoskeleton, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/exoskeleton/definitions/2005986>. |
| MLA | Webster's. "exoskeleton" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/exoskeleton/definitions/2005986> |