'terabyte' definitions:

Definition of 'terabyte'

(from WordNet)
noun
A unit of information equal to 1000 gigabytes or 10^12 (1,000,000,000,000) bytes [syn: terabyte, TB]
noun
A unit of information equal to 1024 gibibytes or 2^40 (1,099,511,627,776) bytes [syn: terabyte, tebibyte, TB, TiB]