V2EX unsaturation

Unsaturation

定义 Definition

unsaturation(不饱和;不饱和度):常用于化学中,指分子中存在双键、三键或环结构等导致氢原子数少于相应饱和化合物的结构特征;也可泛指“未达到饱和状态”。(该词在科学语境最常见。)

发音 Pronunciation

/nstren/

例句 Examples

The oil’s unsaturation makes it liquid at room temperature.
这种油的不饱和性使它在室温下呈液态。

A higher degree of unsaturation in fatty acids can increase susceptibility to oxidation, affecting shelf life and flavor.
脂肪酸更高的不饱和度可能会更容易被氧化,从而影响保质期和风味。

词源 Etymology

un-(否定前缀,“不、非”)+ saturation(饱和)构成。saturation 源自拉丁语 saturare(“使充满、使饱和”)。因此 unsaturation 字面义即“未饱和状态”,在化学中进一步专指“结构上存在不饱和键/环而未达到最大氢化程度”。

相关词 Related Words

文学与经典作品中的用例 Literary Works

  • Lehninger Principles of Biochemistry(《雷宁格生物化学原理》)讨论脂肪酸的不饱和度及其对膜性质、氧化稳定性的影响。
  • Organic Chemistry(Morrison & Boyd 等有机化学教材)用于说明不饱和键、加成反应与不饱和度概念。
  • *IUPAC Compendium of Chemical Terminology (the Gold Book)*(IUPAC《化学术语汇编(金皮书)》)在化学术语定义与规范表述中出现。
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