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petabyte, PB | a unit of information equal to 1000 terabytes or 10^15 bytes | ||
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petabit, Pbit, Pb | a unit of information equal to 1000 terabits or 10^15 bits | ||
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petabyte, pebibyte, PB, PiB | a unit of information equal to 1024 tebibytes or 2^50 bytes | ||
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lead, Pb, atomic number 82 | a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey |