micrometeoroid

/ˌmaɪkroʊˈmitɛəˌrɔɪd/
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Other forms: micrometeoroids

Definitions of micrometeoroid
  1. noun
    a meteorite or meteoroid so small that it drifts down to earth without becoming intensely heated in the atmosphere
    synonyms: micrometeor, micrometeorite
    see moresee less
    type of:
    meteorite
    any piece of a solid space object that entered Earth's atmosphere and landed on Earth's surface
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