meteoroid

英 ['miːtɪərɒɪd] 美 ['mitɪər,ɔɪd]
  • n. [天] 流星体
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英文词源

meteoroid (n.)
"rock floating in space, which becomes a meteor when it enters Earth's atmosphere," formed in English, 1865, from meteor + -oid.

双语例句

1. The cometary ejection play a crucial role in formation and evolution of the meteoroid stream.
彗星的喷发速度在流星群的演化过程中起着重要作用.

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