micromillimeter
/ˌmaɪkroʊˈmɪlɪˌmitər/
noun
- A unit of length equal to one millionth of a meter; a micrometer.
- The machine can cut materials with precision down to a single micromillimeter.
- The width of a human hair is about 70 micromillimeters.
- Scientists measured the dust particle at just a few micromillimeters across.
Synonyms