Word · Frequency #24834
infinitesimal
极小的；微乎其微的
核心释义
extremely small; so small it is almost impossible to measure
- 1.
极微小的；无限小的。
Incalculably, exceedingly, or immeasurably minute; vanishingly small.
- 2.
关于绝对值小于任何正有理数的非零量的。
Of or pertaining to non-zero quantities whose magnitude is less than any positive rational number.
- 3.
极小的,无限小的
infinitely or immeasurably small
无穷小的；无限小的；极微小的；无限小的。；关于绝对值小于任何正有理数的非零量的。；极小的,无限小的；极小的
用法In use
The amount of sugar in this drink is infinitesimal, so it hardly tastes sweet.
用法提示：infinitesimal 作表语形容词，表示“极小的、微乎其微的”，说明含糖量小到几乎无法察觉。
Scientists measured an infinitesimal change in the length of the metal bar when it cooled.
用法提示：infinitesimal 作定语修饰 change，强调变化极其微小。
The probability of both events happening at the same time is infinitesimal.
用法提示：infinitesimal 作表语，描述概率小到几乎不存在。
infinitesimal + noun
作定语时放在名词前，常修饰 chance、difference、amount 等表示数量或程度的词。
There is an infinitesimal chance of error.
出现错误的可能性微乎其微。
be + infinitesimal
作表语时说明主语小到几乎无法测量，数学和科学语境中常用。
相关词与表达Connections
搭配Collocations
- infinitesimal chance
- 极小的机会；微乎其微的可能性
- There is only an infinitesimal chance of snow in the desert.沙漠里下雪的可能性微乎其微。
- infinitesimal amount
- 极少量；微乎其微的量
- The experiment requires an infinitesimal amount of the catalyst.这项实验只需要极微量的催化剂。
- infinitesimal difference
- 极微小的差异
- Scientists measured an infinitesimal difference between the two samples.科学家测量出这两个样品之间极微小的差异。
- infinitesimal quantity
- 无穷小量；极微小的数量
- In calculus, an infinitesimal quantity is treated as approaching zero.在微积分中，无穷小量被视为趋近于零。
学习提示Learner notes
记忆技巧Memory Tip
由 infinite（无限）联想：无限分割下去，小到不能再小，就是 infinitesimal（无穷小）。
语境与语域Context & Register
语域：formal 常见场景：formal writing、mathematics、scientific contexts infinitesimal 通常用于正式或学术语境，尤其在数学和科学中表示“无限小”的概念；日常口语中较少使用，更常说 tiny 或 minuscule。
发音与拼写Pronunciation & Spelling
Rhymes: decimal and centesimal share the stressed /ɛsɪməl/ ending with infinitesimal. Lookalikes: animal ends in -imal but is pronounced /ˈænɪməl/; infinite begins with /ˈɪn/ and does not rhyme.
一起学习词形Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.