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Micrometeorite
noun
Definitions
Noun
- 1 an extraterrestrial particle, less than a millimeter in size, that has survived entry into the atmosphere without melting
- 2 a meteorite or meteoroid so small that it drifts down to earth without becoming intensely heated in the atmosphere wordnet
Etymology
From micro- + meteorite (micro- + meteor + -ite).
See also for "micrometeorite"
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