periodic shedding of the cuticle in arthropods or the outer skin in reptiles 同义词：molt, molting, moult, moulting,
Ecdysis (from , , to take off, strip off) is the moulting of the cuticula in many invertebrates. This process of moulting is the defining feature of the clade Ecdysozoa, comprising the arthropods, nematodes velvet worms, horsehair worms, tardigrades, and Cephalorhyncha.
例句与用法
1.
The degradation of chitin by chitinase was vital step in the life cycle of insects because insects undergo periodic ecdysis and metamorphosis 几丁质代谢随昆虫不同生长发育阶段而变化并保持相对的稳定，对昆虫的正常的生长发育是至关重要的。
2.
Transgenic bt cotton mainly affect high - instar larvae by retarding the growth and intering the proceeding of ecdysis , pupation , and eclosion . the growth retardation leads to the postponement of growth period duration ( the showed that growth period duration prolonged 17 days ) . feeding the larvae with the tissue of the transgenic bt cotton and the moths with the flower of transgenic bt cotton , the number of eggs and hatching rate decreased obverviously 转基因药防田中，天敌昆亚群落的个体数占整个昆虫群落总个体数的10 . 0 % ，其优势种为蜘蛛类、七星瓢虫( coceinellas叩te即uneitatalinnaeus ) 、龟纹瓢虫( prol ， laea少只ponjcagoeze ) 、大眼蝉长蜷( prqp . ylaeajaponicagoeze )和草岭(助rys叩asepre即unetatawesmael ) 。
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