petabytes

petabyte

[pet-uh-bahyt]
noun
1.
2 50 bytes, or 1,024 terabytes.
2.
(loosely) 10 15 or a million billion bytes. Symbol: PB

Origin:
peta- + byte

Dictionary.com Unabridged
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Collins
World English Dictionary
petabyte (ˈpɛtəˌbaɪt)
 
n
computing 1015 or 250 bytes

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Science Dictionary
petabyte   (pět'ə-bīt)  Pronunciation Key 
  1. A unit of computer memory or data storage capacity equal to 1,024 terabytes (250 bytes).

  2. One quadrillion bytes. See Note at megabyte.


The American Heritage® Science Dictionary
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