a reddish oxide of lead (Pb3O4) used as a pigment in paints and in glass and ceramics
source: WordNet 3.0
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.
