IPA: //ˈmaɪkroʊˌpɑrtɪkl//
KK: /ˈmaɪkroʊˌpɑrtɪkl/
A very tiny piece of matter that is smaller than a particle that can be seen with the naked eye.
Scientists are studying the effects of microparticles on human health.
Microparticle → It is formed from "micro-" (from Greek "mikros", meaning small) and "particle" (from Latin "particula", meaning a small part). The word "microparticle" refers to a very small particle or a tiny fragment of matter.
Think of 'micro-' meaning small, and 'particle' meaning a small part — together they describe something that is a very small part.
No commonly confused words.