what is meaning of lip liner
Lines of incision made parallel to them are thought to heal more efficiently. Called also cleavage lines. lead line a purple-blue line at the edge of the gums in chronic lead poisoning; called also blue line. lip line a line on the teeth at the level to which the margin of either lip extends. median line an imaginary vertical line dividing the body equally into right and left parts. milk line the line of thickened epithelium in the embryo along which the mammary glands are developed.