Wordnet 3.0
NOUN (1)
1. 
 a unit of information equal to 1024 pebibytes or 2^60 bytes; 
[syn: exabyte, exbibyte, EB, EiB]
WordNet (r) 3.0 (2006):
exbibyte
    n 1: a unit of information equal to 1024 pebibytes or 2^60 bytes
         [syn: exabyte, exbibyte, EB, EiB]