terabyte
Americannoun
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2 40 (1,099,511,627,776) bytes; 1024 gigabytes.
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(loosely) 10 12 or one trillion (1,000,000,000,000) bytes; 1000 gigabytes. TB, TByte.
noun
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A unit of computer memory or data storage capacity equal to 1,024 gigabytes (2 40 bytes).
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One trillion bytes.
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See Note at megabyte
Other Word Forms
Noun Inflected Forms
Etymology
Origin of terabyte
Vocabulary lists containing terabyte
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
Affected hardware included the MacBook Pro with 1 terabyte of storage, which rose to $1,999 from $1,699 on its US store.
From BBC ● Jun. 25, 2026
The industry’s first one terabyte HDD was announced at the start of 2007.
From Barron's ● Jan. 2, 2026
“A terabyte is, for most people, gigantic, yet a fragment of a human brain – just a miniscule, teeny-weeny little bit of human brain – is still thousands of terabytes.”
From Science Daily ● May 9, 2024
Specifically, an expansion card about the size of half of a business card simply plugs into the back of the entertainment console and expands storage up to 1 terabyte.
From Washington Times ● Nov. 25, 2023
So, to support a terabyte, multiply by five, which gives $5 million per year for a supported terabyte of data.
From Library of Congress Workshop on Etexts by Library of Congress
By the end of its planned five year primary mission, Roman is expected to collect an enormous archive containing roughly 20,000 terabytes of data.
From Science Daily ● May 19, 2026
However Wada said that move directly led to their retrieval of 24 terabytes of data from the Moscow lab in January and April 2019.
From BBC ● Apr. 30, 2026
The telescope will send 11 terabytes of data a day down to Earth, said Mark Melton, a systems engineer at Goddard Space Flight Center.
From Barron's ● Apr. 22, 2026
In all, according to posts about the data breach, 7.7 terabytes of information was available for download.
From Los Angeles Times ● Apr. 10, 2026
For twenty years, something less than three terabytes would be required.
From Library of Congress Workshop on Etexts by Library of Congress
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
