quin·​til·​lion | \ kwin-ˈtil-yən How to pronounce quintillion (audio) \

Definition of quintillion

US : a number equal to 1 followed by 18 zeros — see Table of Numbers also, British : a number equal to 1 followed by 30 zeros — see Table of Numbers

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Other Words from quintillion

quintillion adjective
quintillionth \ kwin-​ˈtil-​yən(t)th How to pronounce quintillionth (audio) \ adjective or noun

Examples of quintillion in a Sentence

Recent Examples on the Web

The object is estimated to weigh at least 2.18 quintillion kilograms (10 to the 18th power), and extend to depths of more than 300 kilometers. Martin Finucane, BostonGlobe.com, "What is that mysterious mass under the huge crater on the dark side of the moon?," 13 June 2019 The machine was said to be capable of generating almost 159 quintillion permutations. New York Times, "Overlooked No More: Alan Turing, Condemned Code Breaker and Computer Visionary," 5 June 2019 But the big target in supercomputer construction right now is building the first exascale computer, capable of a quintillion calculations per second. Avery Thompson, Popular Mechanics, "The U.S. Will Get the World's First Exascale Computer in 2021," 20 Mar. 2019 But the reward added up to nearly 18.5 quintillion grains of rice, or something like 318 billion tons. Jo Craven Mcginty, WSJ, "Six Feet, 48 Hours, 10 Days: How to Avoid Flu," 4 Jan. 2019 Your chances of filling out a perfect bracket are like 1 in 9.2 quintillion (yes, that's an actual number), so don't sweat it out too much. Cheryl Wray, AL.com, "March Madness 2018: How do I fill out NCAA basketball bracket?," 12 Mar. 2018 This is how the 1S-2S transition in hydrogen has been measured to 4 parts in a quintillion, about 1000 times more precise than the new antihydrogen result, Udem says. Adrian Cho, Science | AAAS, "Atoms and antiatoms haven’t crashed Albert Einstein’s theory of relativity—yet," 4 Apr. 2018 Odds of filling out a perfect bracket are 1 in 9.2 quintillion (9,000,000,000,000,000,000), according to a USA Today article. Karen Pilarski, Milwaukee Journal Sentinel, "Wauwatosa man keeps home after no one gets perfect NCAA bracket," 27 Mar. 2018 There is the painstaking work of taxonomists who continue to catalogue the earth's estimated 10 quintillion insects; the Greek island beekeepers; and the Zika-fighting mosquitoes in Brazil. Andrea Gawrylewski, Scientific American, "Bug Lovers, Earth’s Many Apocalypses, the Surprising Minds of Vegetative Patients and Other New Science Books," 1 July 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'quintillion.' 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 quintillion

circa 1690, in the meaning defined above

History and Etymology for quintillion

Latin quintus + English -illion (as in million)

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Statistics for quintillion

Last Updated

25 Jun 2019

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Time Traveler for quintillion

The first known use of quintillion was circa 1690

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Rhyming Dictionary: Words that rhyme with quintillion

Nglish: Translation of quintillion for Spanish Speakers

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to take the place or position of

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