petabyte [pet-uh-bahyt] WORD ORIGIN noun 250 bytes, or 1,024 terabytes. (loosely) 1015 or a million billion bytes. Symbol: PB Liberaldictionary.com
Origin of petabyte peta- + byte Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019 British Dictionary definitions for petabyte petabyte 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 petabyte in Science petabyte [pĕt′ə-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.