meteoroid

英['miːtjərɔɪd] 美['miːtɪərˌɔɪd]
  • n. 流星体
  • mete vt.量;测量;分配n.边界;界石
  • meteor n.流星;大气现象abbr.气象学(=meteorology)
  • meteoric adj.流星的;昙花一现的;大气的
  • meteorite n.陨石;流星
  • meteoroid n.流星体
Noun:
  1. (astronomy) any of the small solid extraterrestrial bodies that hits the earth's atmosphere

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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