Eb n 1: a unit of information equal to 1000 petabits or 10^18 bits [syn: {exabit}, {Ebit}, {Eb}] 2: a unit of information equal to 1000 petabytes or 10^18 bytes [syn: {exabyte}, {EB}] 3: a unit of information equal to 1024 pebibytes or 2^60 bytes [syn: {exabyte}, {exbibyte}, {EB}, {EiB}]