from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A very small, often dust-sized meteoroid.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. an extraterrestrial particle less than a millimeter in size
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a meteorite or meteoroid so small that it drifts down to earth without becoming intensely heated in the atmosphere
Sorry, no etymologies found.