\Lith"arge\, n. [OE. litarge, F. litharge, L.
lithargyrus, Gr. ? the scum or foam of silver; li`qos stone +
? silver. Litharge is found in silverbearing lead ore.]
(Chem.)
Lead monoxide; a yellowish red substance, obtained as an
amorphous powder, or crystallized in fine scales, by heating
lead moderately in a current of air or by calcining lead
nitrate or carbonate. It is used in making flint glass, in
glazing earthenware, in making red lead minium, etc. Called
also {massicot}.