V2EX meteoroid

Meteoroid

释义 (Definition)

meteoroid流星体;在进入地球(或其他天体)大气层之前、在太空中运动的较小岩石或金属碎片。进入大气层并发光时常称为 meteor(流星),若有碎片落到地面则为 meteorite(陨石)

发音 (Pronunciation)

/mitird/

例句 (Examples)

A meteoroid burned up in the atmosphere and became a meteor.
一颗流星体在大气层中燃烧殆尽,变成了流星。

Scientists study meteoroids to learn about the early solar system and the materials that formed the planets.
科学家研究流星体,以了解早期太阳系以及形成行星的物质成分。

词源 (Etymology)

来自 meteor(原指天空中的现象,后指“流星”)+ 后缀 -oid(“……状的、类似……的”)。meteoroid 作为科学术语,用来强调“像流星相关的天体碎片”,并与 meteor / meteorite 区分开。

相关词 (Related Words)

文学与作品用例 (Literary Works)

  • H. G. Wells《The War of the Worlds》(常见于相关讨论与改写文本中,涉及天体与陨落意象)
  • Primo Levi《The Periodic Table》(常见于科普与科学写作语境中提及流星体/陨石材料)
  • Mary Roach《Packing for Mars》(科普写作中常出现与流星体风险相关的词汇与讨论)
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