noun
- fine, powdery material covering the surface of the Moon, consisting of rock fragments and dust created by meteorite impacts
Usage: plural form; also called lunar dust or lunar regolith in scientific contexts
Examples
- Astronauts collected samples of moondust during the Apollo missions.
- The moondust particles are extremely fine and abrasive.
- Scientists study moondust to understand the Moon's geological history.
- The rover's wheels left tracks in the moondust.
- Moondust clung to the spacesuits of the lunar explorers.