Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A tiny particle of meteoric dust, especially one of many that fall to the surface of the earth or moon.
from the GNU version of the Collaborative International Dictionary of English.
- noun A meteorite so small that it drifts down to Earth without becoming intensely heated in the earth's atmosphere.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun an
extraterrestrial particle , less than amillimeter in size, that has survived entry into theatmosphere withoutmelting
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a meteorite or meteoroid so small that it drifts down to earth without becoming intensely heated in the atmosphere
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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Data flows informed her that a micrometeorite had pierced the platform, damaging Drop Troopers in their Sleep Pods.
365 tomorrows » 2009 » September : A New Free Flash Fiction SciFi Story Every Day 2009
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Steve's initial microscopic analysis didn't find any fossils, but he did find a micrometeorite and there are more samples yet to examine.
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There are a variety of scales available in "visible" light imaging, from 0.5 meter scale to 100-meter scale; the highest scale imagers will re-image Apollo landing sites to look at micrometeorite-induced changes.
The LRO Launch Slip NASA Has Still Not Announced Yet - NASA Watch 2009
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The shuttle astronauts will use the laser- and camera-tipped boom one last time late Wednesday night to check for any signs of micrometeorite damage to Endeavour's heat shield.
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Thus, micrometeorite bombardment is an extremely important piece of the rings 'evolutionary puzzle because these impurities cause them to darken over time.
SETI Institute: Life at the SETI Institute: Paul Estrada -- From Dust to Planets SETI Institute 2010
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The shuttle astronauts will use the laser- and camera-tipped boom one last time late Wednesday night to check for any signs of micrometeorite damage to Endeavour's heat shield.
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The space station's newly attached boom was used by shuttle Endeavour's astronauts Thursday to survey their ship for micrometeorite damage.
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The crewmen used a long inspection boom to check for any signs of micrometeorite damage.
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Vanguard 1 with its small suite of instruments provided unprecedented information on Earth's size and shape, air density and temperature ranges, and the micrometeorite density in space.
Vanguard 1 Bente Lilja Bye 2008
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The crew and ground teams had to first determine what the problem was – initially, the crew feared that they had been hit by a micrometeorite, but determined the problem shortly thereafter.
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