microscopic particle
nounUK /ˌmaɪ.krəˈskɒp.ɪk ˈpɑː.tɪ.kəl/
US /ˌmaɪ.krəˈskɑː.pɪk ˈpɑːr.t̬ɪ.kəl/
A microscopic particle is a tiny piece of something that is too small to see with your eyes alone.
The scientist used a special microscope to look at a microscopic particle of dust.
RELATED WORDS
OTHER MEANINGS
2. A very small piece of matter studied in physics and chemistry.
The air filter traps every microscopic particle that floats through it.
3. A tiny bit of pollution or dust in the air or water.
Tests showed a microscopic particle of plastic in the river sample.
4. A tiny living thing, like a germ, that can only be seen with a microscope.
A microscopic particle in the water made him sick.