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petabyte

[ pet-uh-bahyt ]
/ ˈpɛt əˌbaɪt /
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noun

250bytes, or 1,024 terabytes.
(loosely) 1015 or a million billion bytes. Symbol: PB

QUIZZES

QUIZ YOURSELF ON “THEIR,” “THERE,” AND “THEY’RE”

Are you aware how often people swap around “their,” “there,” and “they’re”? Prove you have more than a fair grasp over these commonly confused words.
Question 1 of 7
Which one of these commonly confused words can act as an adverb or a pronoun?

Origin of petabyte

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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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British Dictionary definitions for petabyte

petabyte
/ (ˈpɛtəˌbaɪt) /

noun

computing 10 15 or 2 50 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

Scientific definitions for petabyte

petabyte
[ pĕtə-bīt ]

A unit of computer memory or data storage capacity equal to 1,024 terabytes (250 bytes).
One quadrillion bytes. See Note at megabyte.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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