V2EX ecdysis

Ecdysis

释义 Definition

(生物学)蜕皮、脱壳:节肢动物(如昆虫、蛛形纲、甲壳类)为生长而脱去旧的外骨骼/角质层并形成新外层的过程。常见同义表达为 molt(蜕皮)。

发音 Pronunciation

/k.d.ss/

例句 Examples

The cicada completes ecdysis on a tree trunk.
蝉会在树干上完成蜕皮。

Ecdysis is tightly regulated by hormones and leaves the animal vulnerable until the new cuticle hardens.
蜕皮过程受激素严格调控,而在新角质层硬化前,动物往往更脆弱、易受伤害。

词源 Etymology

ecdysis 来自希腊语 ekdysis,意为“脱去、剥下”,由 *ek-*(“向外、出去”)+ dyein(“进入/穿上”,在这里引申为“脱下/除去外层”)构成。该词在现代主要用于动物学与昆虫学语境,强调“外层被脱去”的生理过程。

相关词 Related Words

文学与著作 Literary Works

  • The Insects: An Outline of Entomology(P. J. Gullan & P. S. Cranston)昆虫学教材中常用 ecdysis 讨论昆虫蜕皮与龄期(instar)。
  • Physiology of the Insect(M. Rockstein 等编辑的经典昆虫生理学资料)在激素调控、蜕皮与表皮形成章节中频繁出现。
  • Biology of Arthropods(多部以节肢动物生物学为主题的专著/教材常见术语)用于解释外骨骼限制生长与蜕皮机制。
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