V2EX cercaria

Cercaria

Definition|释义

cercaria(名词):尾蚴;指某些吸虫(尤其是血吸虫)在蜗牛等中间宿主体内发育后释放到水中的幼虫阶段,通常具有尾部,能游动并寻找下一宿主或侵入终宿主。

Pronunciation|发音(IPA)

/srkri/

Examples|例句

The researcher found cercaria in the pond water.
研究人员在池塘水中发现了尾蚴。

When people swim in contaminated lakes, cercaria can penetrate the skin and trigger an immune reaction, which is a key step in the transmission of schistosomiasis.
当人们在受污染的湖泊中游泳时,尾蚴可能穿透皮肤并引发免疫反应,这是血吸虫病传播过程中的关键一步。

Etymology|词源

来自拉丁语新词 cercaria,源头可追溯到希腊语 kérkos(κρκο,意为“尾巴”)。该词强调这种幼虫常带有“尾状”结构,用于游动与扩散。生物学与寄生虫学中常用作专门术语。(复数常见为 cercariae。)

Related Words|相关词汇

Literary Works|文学与著作中的出现

  • The Biology of Parasites(寄生虫生物学教材与综述类著作中常讨论尾蚴阶段)
  • Human Parasitology(人体寄生虫学教材中在吸虫生活史章节出现)
  • Parasitic Diseases(寄生虫病学参考书中关于血吸虫传播与皮肤侵入过程会使用该词)
  • 世界卫生组织(WHO)及热带医学相关报告与专著(涉及血吸虫病流行区水体暴露与尾蚴监测时常见该词)
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