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Pb
noun 1.A soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey. Synonyms: atomic number 82, lead. 2.A unit of information equal to 1000 terabits or 10^15 bits. Synonyms: Pbit, petabit. 3.A unit of information equal to 1000 terabytes or 10^15 bytes. Synonym: petabyte. 4.A unit of information equal to 1024 tebibytes or 2^50 bytes. Synonyms: pebibyte, petabyte, PiB.
WordNet 3.0 © 2010 Princeton University
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