litharge of gold: a name given to litharge when coloured red by mixture of red lead. litharge of silver: a name given to it as being a by-product in…

red lead: a red oxide of lead obtained from litharge by exposing it to hot air, much used as a pigment; = minium, n. white lead (or simply lead): a…

a poisonous oily liquid, Pb(C2H5)4, which is added to petrol as an anti-knock agent making possible higher compression ratios; = lead tetraethyl n.…

Lead tetrahydride, PbH4, an extremely unstable gas; (more generally) any of a (largely hypothetical) series of lead hydrides, analogous to the…