quadrillion

American  

[kwo-dril-yuhn] / kwɒˈdrɪl yən /

noun

plural

quadrillions,

plural

quadrillion

1. a cardinal number represented in the U.S. by 1 followed by 15 zeros, and in Great Britain by 1 followed by 24 zeros.

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adjective

1. amounting to one quadrillion in number.

quadrillion British  

/ kwɒˈdrɪljən /

noun

1. US and Canadian word: septillion.  (in Britain) the number represented as one followed by 24 zeros (10 ²⁴ )

2. (in the US and Canada) the number represented as one followed by 15 zeros (10 ¹⁵ )

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determiner

1. 1. amounting to this number

      a quadrillion atoms

   2. ( as pronoun )

      a quadrillion

Other Word Forms

• quadrillionth noun

Etymology

Origin of quadrillion

1665–75; quadr- + -illion (as in million )

Example Sentences

Estimates for the value of all this vary wildly, from billions to quadrillions.

From BBC

“There’d be something very strange if the best way to train a model was to just generate, like, a quadrillion tokens of synthetic data and feed that back in,” Altman said.

From Seattle Times

With Leonardo's massive computing power, allowing quadrillions of calculations per second, they could simulate a wide range of water flow speeds and conditions.

From Science Daily

They found that as many as 10 quadrillion nanocluster aerosol particles could be emitted per kilogram of cooking fuel -- matching or exceeding those produced from vehicles with internal combustion engines.

From Science Daily

In China's Poyang Lake, the country's largest freshwater lake, the researchers calculated that rotifers were creating 13.3 quadrillion particles every single day.

From Science Daily