V2EX ascidian

Ascidian

释义 Definition

ascidian(名词)指海鞘(也常被称为“海樽/海鞘类”,英文俗称 sea squirt):一种海洋被囊动物,成体多固着在岩石、码头等表面,以滤食为生。也可作形容词,表示“海鞘的/海鞘类的”。

发音 Pronunciation

/sdin/

例句 Examples

Ascidian larvae can swim briefly before they attach to a surface.
海鞘的幼体在附着到表面之前可以短暂游动。

In the tide pools, the researcher recorded ascidian colonies whose transparent bodies revealed the rhythmic pumping that drives filter feeding.
在潮池里,研究者记录了海鞘群体;它们半透明的身体能看见有节律的“抽吸”,这正是滤食的动力来源。

词源 Etymology

来源于新拉丁语 Ascidia(海鞘属名),而 Ascidia 又来自希腊语 askidion,意为“小皮囊/小袋子”,对应海鞘成体外形像囊袋、并具有入水口与出水口的特征。

相关词 Related Words

文学与作品 Notable Works
  • Charles Darwin, The Voyage of the Beagle(航海考察与博物学叙述中涉及海洋无脊椎动物与被囊类)
  • Ernst Haeckel, The History of Creation(讨论进化与生物分类时提及被囊动物/海鞘类)
  • Encyclopedia Britannica(相关条目常使用 ascidian 指代海鞘类群)
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