Definition of

Pb

  1. (noun, quantity) a unit of information equal to 1024 tebibytes or 2^50 bytes
  2. (noun, quantity) a unit of information equal to 1000 terabytes or 10^15 bytes
  3. (noun, quantity) a unit of information equal to 1000 terabits or 10^15 bits
  4. (noun, substance) a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey

via WordNet, Princeton University

Alternate forms of Pb

Hyponyms: antimonial lead, hard lead, pig lead

Hypernyms: computer memory unit, metal, metallic element

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Pure Mathematics

the branches of mathematics that study and develop the principles of mathematics for their own sake rather than for their immediate usefulness