| 释义 |
exo·skeleton
\“+\ noun
Etymology: exo- + skeleton
1. : an external skeleton or supportive covering of an animal (as the system of sclerites covering the body of an insect or of bony plates covering an armadillo) — compare endoskeleton
2. : bony or horny parts (as nails, hoofs, or scales) of a vertebrate that are produced from epidermal tissues |