V2EX yolk

Yolk

定义 Definition

n. 蛋黄;许多动物卵中富含营养的部分,通常含有脂类、蛋白质、维生素、矿物质和色素。它常为发育中的胚胎提供能量和物质基础,在鸟蛋、鱼卵和一些无脊椎动物卵中都很重要。日常语境中也常指鸡蛋中黄色、可食用的中心部分。

发音 Pronunciation

/jok/
/jk/

例句 Examples

The yolk is yellow.
蛋黄是黄色的。

In many eggs, the yolk supplies nutrients that help the embryo develop before it hatches.
在许多卵中,蛋黄为胚胎孵化前的发育提供营养。

词源 Etymology

来自古英语 geolca 或相关形式,意思与“黄色部分”有关;它和表示“黄色”的古英语词根有联系。这个词的历史含义一直与蛋中颜色较深、营养较丰富的部分相关。

相关词 Related Words

科学文献用例 Scientific Usage

  • 在胚胎学教材中,用来描述卵细胞或卵内为胚胎发育提供营养储备的结构。
  • 在动物生殖和发育生物学论文中,常用于讨论卵的营养分配、胚胎早期发育和卵生策略。
  • 在食品科学和营养学文献中,用来分析鸡蛋的脂质、蛋白质、色素和乳化特性。
  • 在家禽科学和水产养殖研究中,常见于关于蛋品质、孵化率和幼体早期营养的专业语境。
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