V2EX swordtail

Swordtail

释义 Definition

swordtail(名词):剑尾鱼,常指热带淡水观赏鱼“剑尾鱼”(Xiphophorus hellerii),雄鱼尾鳍下叶延长如“剑”而得名。也可指某些尾部形态类似“剑”的动物(如部分蝴蝶的俗名),但最常见用法是指这种观赏鱼。

发音 Pronunciation (IPA)

/srdtel/

例句 Examples

I bought a swordtail for my aquarium.
我买了一条剑尾鱼放进鱼缸里。

The male swordtail, with its long “sword” extension, is often used in studies of sexual selection and ornamental traits.
雄性剑尾鱼因为尾部细长如“剑”的延伸,常被用于研究性选择与装饰性特征。

词源 Etymology

sword(剑)+ tail(尾巴) 组成的合成词,形象描述雄性剑尾鱼尾鳍末端细长突出的外观;这种直观的命名方式在英语动物俗名中很常见。

相关词 Related Words

文学与作品用例 Literary Works

  • The Aquarium Fish Handbook》(George Blasiola):在观赏鱼饲养与品种介绍中常提到 swordtail
  • Baensch Aquarium Atlas》(Hans A. Baensch):作为常见热带淡水鱼类条目出现(含 swordtail 的习性与饲养信息)。
  • Encyclopedia of Aquarium & Pond Fish》(David Alderton):在“胎生鱼/观赏鱼”相关章节中收录并使用 swordtail
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