(1):
(n.) A bright red pigment consisting of mercuric sulphide, obtained either from the mineral cinnabar or artificially. It has a fine red color, and is much used in coloring sealing wax, in printing, etc.
(2):
(n.) Hence, a red color like the pigment; a lively and brilliant red; as, cheeks of vermilion.
(3):
(v. t.) To color with vermilion, or as if with vermilion; to dye red; to cover with a delicate red.