V2EX terameter

Terameter

Definition / 定义

terameter(Tm)太米,长度单位,等于 10 米(一万亿米)。常用于天文学或超大尺度距离的粗略表示。(该词较少用于日常英语。)

Pronunciation / 发音

/trmitr/

Examples / 例句

A terameter is one trillion meters.
太米等于一万亿米。

The probe traveled several terameters through deep space before it sent back new data.
探测器在深空中航行了数太米后才传回新的数据。

Etymology / 词源

tera-(国际单位制前缀,表示 10,源自希腊语 téras,有“巨大、怪异之物”的含义,引申为“极其巨大”)+ meter/metre(“米”,源自希腊语 métron“度量”)组合而成,字面意思就是“10 米”。

Related Words / 相关词

Literary Works / 文学与著作例证

  • 《The International System of Units (SI)》(BIPM,国际计量局的《国际单位制》手册):在列举 SI 前缀与单位换算时会涉及 tera- 与相应量级(包含可构成 terameter 这类单位的用法)。
  • NIST(美国国家标准与技术研究院)的计量与单位参考资料(如单位与前缀说明文档):在介绍 SI 前缀体系与大数量级长度时可能出现该词或同类构词。
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