Translucent powder refers to a type of makeup powder that is almost see-through or transparent. It is used to set or mattify the skin, giving a smooth and less oily appearance without adding any color or coverage. Full definition
After applying lipstick, hold a tissue over your lips and lightly dust with translucent powder. (redbookmag.com)
To keep your eye makeup in place, sweep a bit of translucent powder over it and under the eyes. (stylecraze.com)
To make your lipstick stay on all day, pull apart the layers of a tissue, place one tissue on your lips, and apply translucent powder on top of the tissue. (seventeen.com)