1. a meteorite or meteoroid so small that it drifts down to earth without becoming intensely heated in the atmosphere; [syn: micrometeorite, micrometeoroid, micrometeor]
WordNet (r) 3.0 (2006):
micrometeor
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]