red.-a red amorphous powder consisting of ferric oxide.  it is used in polishing glass, metal, or gems, and as a cosmetic, etc. called also crocus, jeweler's rouge, etc.-a cosmetic used for giving a red color to the cheeks or lips. the best is prepared from the dried flowers of the safflower, but it is often made from carmine.-to paint the face or cheeks with rouge.-to tint with rouge; as, to rouge the face or the cheeks.