sextillion

noun, often attributive
sex·​til·​lion | \ seks-ˈtil-yən How to pronounce sextillion (audio) \

Definition of sextillion

US : a number equal to 1 followed by 21 zeros — see Table of Numbers also, British : a number equal to 1 followed by 36 zeros — see Table of Numbers

Examples of sextillion in a Sentence

Recent Examples on the Web

Xenon-124 is a radioactive isotope that takes about 1.8 sextillion years to decay, on average. Avery Thompson, Popular Mechanics, "Dark Matter Scientists Observe the Rarest Event in History," 27 Apr. 2019 If you were compressed into a black hole, for instance, the result would be 1 sextillion times smaller than a grain of sand. Sophie Weiner, Popular Mechanics, "How Big Are Black Holes, Really?," 16 June 2017 Inflation peaked in 2008 at a year-over-year rate of 89 sextillion (that’s 89 with 21 zeros) percent, with one U.S. dollar equaling anything from 71 billion to 2.5 quadrillion Zimbabwean dollars. Karan Mahajan, The New Republic, "After the Strongman," 26 Mar. 2018 In a single second, the authors (an international collaboration working with Brookhaven National Laboratory’s STAR detector) saw the QGP goop rotate a mind-boggling sextillion times — a billion trillions. Sylvia Morrow, Discover Magazine, "The Fastest Fluid," 1 Feb. 2018 If you were compressed into a black hole, for instance, the result would be 1 sextillion times smaller than a grain of sand. Sophie Weiner, Popular Mechanics, "How Big Are Black Holes, Really?," 16 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sextillion.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of sextillion

1690, in the meaning defined above

History and Etymology for sextillion

French, irregular from sex- (from Latin sex) + -illion (as in million)

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Dictionary Entries near sextillion

sextet

sexti-

sextile

sextillion

sexting

sextipara

sextipolar

Statistics for sextillion

Last Updated

29 May 2019

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Time Traveler for sextillion

The first known use of sextillion was in 1690

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Rhyming Dictionary: Words that rhyme with sextillion

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