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Noun: litharge  'li,thaa(r)j
  1. 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. Similar to massicot

Derived forms: litharges

Encyclopedia: Litharge