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quadrillion



qua·dril·lion [ kwä-ˈdril-yən]



quadrillion   
noun
[kwä-ˈdril-yən]

Definition of quadrillion

US : a number equal to 1 followed by 15 zeros — see Table of Numbers
also, British : a number equal to 1 followed by 24 zeros — see Table of Numbers


Other Words from quadrillion
quadrillion adjective
quadrillionth \ kwä-​ˈdril-​yən(t)th \ adjective or noun



Recent Examples on the Web


//The Kivu swarm, with its three new lineages of Ebola, may amount to about one or two quadrillion infective particles of the virus.
— Richard Preston, The New Yorker, "Is Ebola Evolving Into a More Deadly Virus?," 7 Aug. 2019
//The supercomputer, called Summit, is capable of 148 quadrillion — one million billion — calculations per second.
— David Goldman, CNN, "US details new restrictions on Chinese supercomputer companies," 21 June 2019
//And the minuscule mass of the Higgs boson, whose relative smallness allows big structures such as galaxies and humans to form, falls roughly 100 quadrillion times short of expectations.
— Quanta Magazine, "In a Multiverse, What Are the Odds?," 3 Nov. 2014
//The bulk of Japan’s ¥1.83 quadrillion in household financial assets is held in post offices or bank accounts that pay zero interest.
— The Economist, "Japanese people need to put more aside for retirement," 4 July 2019
//Booker found this odd trio of 16-digit integers by devising a new search algorithm to sift them out of quadrillions of possibilities.
— Quanta Magazine, "Sum-of-Three-Cubes Problem Solved for ‘Stubborn’ Number 33," 26 Mar. 2019
//The core itself is 1 quadrillion to 1 sextillion kilograms, which is a little lighter than Mercury.
— John Wenz, Popular Mechanics, "Scientists Think They've Found a Dead Planetary Core Orbiting a Dead Star," 4 Apr. 2019
//Last month, scientists showed that there are likely quadrillions of diamonds below the Earth's surface.
— David Grossman, Popular Mechanics, "The Hope Diamond Formed At The Bottom of The Ocean," 2 Aug. 2018
//But the odds aren’t especially favorable, at about 1 in 88 quadrillion (that’s 88,000,000,000,000,000).
— Scott Mcfetridge, The Seattle Times, "Mega Millions, Powerball prizes come down to math, long odds," 23 Oct. 2018


First Known Use of quadrillion

circa 1690, in the meaning defined above



History and Etymology for quadrillion

French, from Middle French, from quadri- + -illion (as in million)



Dictionary Entries near quadrillion

quadrille

quadrilled

quadrille paper

quadrillion

quadriparous

quadripartite

quadripartition