micrometeoroid   (TTS Sound)

The micrometeoroid has 1 Senses.

• micrometeor, micrometeorite, micrometeoroid
• 流星塵
• a meteorite or meteoroid so small that it drifts down to earth without becoming intensely heated in the atmosphere
• 隕石または流星体が小さいために大気で激しく加熱されずに地球へ徐々に落下する