Find the word definition

Wiktionary
microunit

n. One millionth of any standard unit (especially of an SI unit)

Usage examples of "microunit".

But it clearly demonstrated that the individual microunits were highly mobile, since the entire cloud never turned silver at the same time, but only portions, or bands.

But it clearly demonstrated that the individual microunits were highly mobile, since the entire cloud never turned silver at the same time, but only portions, or bands.