Pb

Definitions of Pb

1. noun

   a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey
   synonyms: atomic number 82, lead

   types:

   hard lead

   unrefined lead that is hard because of the impurities it contains

   antimonial lead, hard lead

   a lead alloy that contains about 5% antimony

   pig lead

   lead that is cast in pigs

   grid metal

   a kind of hard lead that is used for grids in storage batteries

   type of:

   metal, metallic element

   any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
2. noun

   a unit of information equal to 1000 terabits or 10^15 bits
   synonyms: Pbit, petabit

   type of:

   computer memory unit

   a unit for measuring computer memory