microparticle
/ˈmaɪkroʊˌpɑrtɪkəl/
noun
- An extremely small particle, typically between 0.1 and 100 micrometers in size.
- The filter can trap any microparticle larger than 0.5 micrometers.
- Scientists study each microparticle to understand how dust travels through the air.
- A single microparticle of pollution can affect air quality for miles.