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3 definitions found
 for Massicot
From The Collaborative International Dictionary of English v.0.48 :

  Litharge \Lith"arge\ (l[i^]th"[.a]rj), n. [OE. litarge, F.
     litharge, L. lithargyrus, Gr. liqa`rgyros the scum or foam of
     silver; li`qos stone + 'a`rgyros 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 or minium, etc.
     Called also massicot.
     [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  massicot \mas"si*cot\, n. [F. massicot; E. masticot is a
     corruption.] (Chem.)
     Lead monoxide (also called Lead protoxide), 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. It is also called lead oxide yellow, as opposed to
     red lead, which is lead tetroxide Pb3O4.
     [1913 Webster +PJC]
  
     Note: Massicot is sometimes used by painters, and also as a
           drier in the composition of ointments and plasters.
           [1913 Webster]

From WordNet (r) 3.0 (2006) :

  massicot
      n 1: the mineral form of lead monoxide; in the form of yellow
           powder it is used as a pigment [syn: massicot,
           massicotite]

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