A heavy, brilliant red pigment, consisting of an oxide of lead, Pb3O4, obtained by exposing lead or massicot to a gentle and continued heat in the air. It is used as a cement, as a paint, and in the manufacture of flint glass. Called also red lead, lead tetroxide, lead orthoplumbate, mineral orange, mineral red, Paris red, Saturn red, and less definitively, lead oxide.

Red oxide of lead; a red pigment commonly used in medieval illumination; vermilion.

a reddish oxide of lead (Pb3O4) used as a pigment in paints and in glass and ceramics