peta-
a combining form used in the names of units of measure equal to one quadrillion (1015 ) of a given base unit.
peta-
American
peta-
1
British
prefix
Peta
2
British
abbreviation
peta–
Scientific
-
A prefix that means:
-
One quadrillion (10 15), as in petahertz, one quadrillion hertz.
-
2 50 (that is, 1,125,899,906,842,624), which is the power of two closest to a quadrillion, as in petabyte.
Etymology
Origin of peta-
Origin uncertain
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:
The binary peta- and exa- loadings, though well established, are not in jargon use either — yet.
From The Jargon File, Version 4.0.0, 24 Jul 1996 by Eric S. Raymond
The binary peta- and exa- loadings, though well established, are not in jargon use either —- yet.
From The Jargon File, Version 2.9.10, 01 Jul 1992 by Eric S. Raymond
The binary peta- and exa- loadings, though well established, are not in jargon use either -- yet.
From The Jargon File, Version 4.2.2, 20 Aug 2000 by Guy L. Steele
Importantly, Peta also noted that equities account for a greater share of household net worth across all wealth brackets.
From MarketWatch ● Aug. 17, 2026
Peta estimates that half of all households don’t save any of their paychecks in a normal year, meaning “this can’t go on forever,” as he puts it.
From Barron's ● Jun. 22, 2026
Doug Peta, a strategist with BCA Research, estimates that a 10% stock return, including dividends, taxed at the highest marginal rate, boosts spending capacity as much as an 18% rise in income.
From The Wall Street Journal ● Feb. 10, 2026
Aside from her career, Nicola is known for encouraging her followers to adopt or foster animals, and she was rewarded with a Peta award in 2022 for being a Pawsome Adoption Advocate.
From BBC ● Jan. 20, 2026
Cynthia grew up with the Comanches, and married Peta Nokoni or Wanderer, a fine young brave who was elected head chief of the Kwahadis.
From Boys' Book of Frontier Fighters by Edwin L. (Edwin Legrand) Sabin
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