V2EX caudal fin

Caudal Fin

Definition / 定义

caudal fin尾鳍;鱼类(以及部分水生动物)位于身体最后端、主要用于推进与转向的鳍。

Examples / 例句

The fish flicked its caudal fin and darted away.
那条鱼摆动尾鳍,迅速游开了。

In fast-swimming species, a powerful caudal fin provides most of the thrust for long-distance movement.
在一些快速游泳的物种中,强有力的尾鳍为长距离运动提供了大部分推进力。

Pronunciation / 发音(IPA)

/kdl fn/

Etymology / 词源

caudal 来自拉丁语 cauda,意为“尾巴”;fin 指“鳍”。合起来字面意思就是“尾部的鳍”,即“尾鳍”。

Related Words / 相关词汇

In Literature / 文学与经典作品中的出现

  • Charles Darwin, On the Origin of Species(《物种起源》)在讨论形态差异与适应时常涉及鱼类结构(包括鳍的类型与功能)。
  • Charles Darwin, The Voyage of the Beagle(《贝格尔号航行记》)自然观察描写中出现鱼类解剖与运动相关术语(可能包括尾鳍等表达)。
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