exoskeleton
exo·skel·e·ton
noun \ˌek-sō-ˈskel-ət-ən\Definition of EXOSKELETON
1
: an external supportive covering of an animal (as the system of sclerites covering the body of an insect)—compare endoskeleton
2
: bony or horny parts (as nails, hooves, or scales) of a vertebrate produced from epidermal tissues
—exo·skel·e·tal \-ət-əl\ adjective
Learn More About
Seen & Heard 
What made you want to look up exoskeleton? Please tell us where you read or heard it (including the quote, if possible).
