yottabit
         n 1: a unit of information equal to 1000 zettabits or 10^24 bits
               [syn: {yottabit}, {Ybit}, {Yb}]

English Dictionary: yottabyte	by the DICT Development Group
From WordNet (r) 3.0 (2006) [wn]:
yottabyte n a unit of information equal to 1000 zettabytes or 10^24 bytes Synonym(s): yottabyte, YB a unit of information equal to 1024 zebibytes or 2^80 bytes Synonym(s): yottabyte, yobibyte, YB, YiB
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]:
yottabyte          2^80 = 1,208,925,819,614,629,174,706,176 {bytes} = 1024       {zettabytes}.          See {prefix}.          (1997-05-02)