Talc (noun)

1. A soft, silky mineral that is composed of hydrated magnesium silicate, commonly used in cosmetic powders, as a filler in paper, and as a lubricant.
2. A powder made from this mineral.

Origin:

Late 18th century: from french talc, via arabic from persian talk.

Examples:

1. The talc was added to the paint to make it smoother and easier to apply.
2. The baby's bottom was dusted with talc to prevent diaper rash.
3. The model was given a light dusting of talc to reduce shine on her face.
4. The artist used talc as a dry lubricant to prevent the chalk from sticking to the paper.
5. The manufacturer added talc to the paper to make it bulkier and less expensive.