SkyfireDict

pb   (TTS Sound)

The noun pb has 4 senses

• 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")


• petabit, Pbit, Pb -- (a unit of information equal to 1000 terabits or 10^15 bits)


• petabyte, PB -- (a unit of information equal to 1000 terabytes or 10^15 bytes)


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