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2 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 mi·cro·me·te·or·oid /-ˈmitiəˌrɔɪd/
 微流星; 微流星體

From: WordNet (r) 2.0

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