Definition of Pb

noun (n)

• a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey (noun.substance)

  Synonym: atomic number 82, lead
  

  source: wordnet30
• a unit of information equal to 1000 terabits or 10^15 bits (noun.quantity)

  Synonym: pbit, petabit
  

  source: wordnet30
• a unit of information equal to 1000 terabytes or 10^15 bytes (noun.quantity)

  Synonym: petabyte
  

  source: wordnet30
• a unit of information equal to 1024 tebibytes or 2^50 bytes (noun.quantity)

  Synonym: pebibyte, petabyte, pib
  

  source: wordnet30

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