Share this entry

zettabyte Syllabification: zet·ta·byte
Pronunciation: /ˈzedəˌbīt/
(abbrev.: Zb or ZB)

Definition of zettabyte in English:


A unit of information equal to one sextillion (1021) or, strictly, 270 bytes.
Example sentences
  • Humanity's total digital output currently stands at 8,000,000 petabytes—which each represent a million gigabytes—but is expected to pass 1.2 zettabytes this year.
  • A zettabyte, incidentally, is roughly half a million times the entire collections of all the academic libraries in the United States.
  • We are talking just under half a Zettabyte.

Definition of zettabyte in:

Share this entry


What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources