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quadrillion

[ kwo-dril-yuhn ]

noun

, plural quad·ril·lions, (as after a numeral) quad·ril·lion.
  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.


adjective

  1. amounting to one quadrillion in number.

quadrillion

/ kwɒˈdrɪljən /

noun

  1. (in Britain) the number represented as one followed by 24 zeros (10 24) US and Canadian wordseptillion
  2. (in the US and Canada) the number represented as one followed by 15 zeros (10 15)
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

determiner

    1. amounting to this number

      a quadrillion atoms

    2. ( as pronoun )

      a quadrillion

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Derived Forms

  • quadˈrillionth, adjective
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Other Words From

  • quad·rillionth noun adjective
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Word History and Origins

Origin of quadrillion1

1665–75; quadr- + -illion (as in million )
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Word History and Origins

Origin of quadrillion1

C17: from French quadrillon, from quadri- + -illion, on the model of million
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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.

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

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.

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.

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