单词 exocuticle 释义 exocuticle|kskjutk()l|Also exocuticula.[f. exo- + cuticle.]The middle layer of a cuticle. a. The hard, chitinous outer part of the procuticle of an insect or other arthropod.1929[see endocuticle a].1951A. G. Richards Integument of Ar...