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 Definition of 'PB':

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1. (noun) lead, Pb, atomic number 82
a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey
"the children were playing with lead soldiers"

2. (noun) petabit, Pbit, Pb
a unit of information equal to 1000 terabits or 10^15 bits


3. (noun) petabyte, PB
a unit of information equal to 1000 terabytes or 10^15 bytes


4. (noun) petabyte, pebibyte, PB, PiB
a unit of information equal to 1024 tebibytes or 2^50 bytes



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"PB." Definitions.net. STANDS4 LLC, 2008. 29 August. 2008. http://www.definitions.net/definition/PB
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