A yellow form of lead monoxide, used as a pigment.
- ‘Massicot is sometimes used by painters, and also as a drier in the composition of ointments and plasters.’
- ‘A comparative study with different concentrations of two pigments (ultramarine blue and massicot) was carried out.’
- ‘When the workmen take care not to agitate the massicot in placing it in the tun, they do not disseminate the saturnine dust during this operation.’
- ‘He reported finding wulfenite, cerussite, anglesite, plattnerite, and massicot as alteration products of galena in three pegmatites at Saint Peters Dome.’
Late 15th century: from French (influenced by Italian marzacotto unguent), ultimately from Arabic martak.