red lead

Noun

Meaning

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

Source: WordNet

minium color red pigment annatto orange red plumbo-plumbic oxide lead tetroxide

oxide

Colour was sometimes added by hand, using a red lead ink in tan-e prints, or later in a pink safflower ink in beni-e prints. Source: Internet

The bridge was originally painted with red lead primer and a lead-based topcoat, which was touched up as required. Source: Internet