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petabyte

[pet-uh-bahyt] /ˈpɛt əˌbaɪt/
noun
1.
2 50 bytes, or 1,024 terabytes.
2.
(loosely) 10 15 or a million billion bytes. Symbol: PB.
Origin
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for petabytes

petabyte

/ˈpɛtəˌbaɪt/
noun
1.
(computing) 1015 or 250 bytes
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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petabytes in Science
petabyte
  (pět'ə-bīt)   
  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
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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