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massicot
massicotite
Definition: the mineral form of lead monoxide; in the form of yellow powder it is used as a pigment
Definition: lead monoxide, 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; also, lead oxide yellow, as opposed to red lead, which is lead tetroxide Pb₃O₄.