Mas"si*cot (?), n. [F. massicot; E. masticot is a corruption.] Chem.
Lead protoxide, PbO, obtained as a yellow amorphous powder, the fused and crystalline form of which is called litharge; lead ocher. It is used as a pigment.
<-- now pref. Lead monoxide; also, lead oxide yellow, as opposed to red lead, which is lead tetroxide Pb3O4 -->
⇒ Massicot is sometimes used by painters, and also as a drier in the composition of ointments and plasters.
© Webster 1913.