Search Result for "micrometeorite": 
Wordnet 3.0

NOUN (1)

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

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2 definitions retrieved:

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]
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]