micrometeorite

from WordNet (r) 3.0 (2006)

micrometeorite
    n 1: a meteorite or meteoroid so small that it drifts down to
         earth without becoming intensely heated in the atmosphere
         [syn: {micrometeorite}, {micrometeoroid}, {micrometeor}]

from The Collaborative International Dictionary of English v.0.48

micrometeorite \micrometeorite\ n.
   A meteorite so small that it drifts down to Earth without
   becoming intensely heated in the earth's atmosphere.
   [WordNet 1.5]

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