---

Hello, I just created this thread because of this word I've came across in many posts.

English isn't my first language and I can't find any translation for this word besides "finely powdered substance".

I've come to the conclusion that the meaning is more close to "coloured like dust in appearance". Is this right? And in that case, is it formed by microscopic fine soft hairs (like "tomentose" in plants), or scales, etc?

Thanks in advance,
Alberto.