meteoroid

英 ['miːtɪərɒɪd]美 ['mitɪər,ɔɪd]

n. [天] 流星体

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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