micrometeoroids

英[maɪkrɒmɪ'tɔːrɔɪdz] 美[maɪkrɒmɪ'tɔːrɔɪdz]
  • n.微陨星体
名词 micrometeoroid:
  1. a meteorite or meteoroid so small that it drifts down to earth without becoming intensely heated in the atmosphere