PbO

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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 Virtual Entity of Relevant Acronyms (Version 1.9, June 2002) [vera]:

  PBO
       Process Before Output (R/3)