lith·arge (lĭthärj′, lĭ-thärj)
A yellow lead oxide, PbO, used in storage batteries and glass and as a pigment. Also called lead monoxide, massicot.
[Middle English litarge, from Old French, alteration of litargire, from Latin lithargyrus, from Greek litharguros : lithos, stone + arguros, silver (from the production of litharge as a byproduct of the extraction of silver from argentiferous galena); see arg- in the Appendix of Indo-European roots.]
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