micrometeoroid.

A very small natural particle moving through space, typically from dust-sized to small-grain scale.

Use it for

Words that belong together

• a micrometeoroid impact
• micrometeoroid shielding
• a micrometeoroid strike

On the page

A micrometeoroid had punctured the outer layer without reaching the pressure vessel.

The inspection found years of micrometeoroid impacts along the sunward edge.

Usage notes

Primary category: sci-fi. Forms: Singular micrometeoroid; plural micrometeoroids. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings.