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)

determiner

1. 1. amounting to this number

      a quadrillion atoms

   2. ( as pronoun )

      a quadrillion

Derived Forms

• quadˈrillionth, adjective

Other Words From

• quad·rillionth noun adjective

Word History and Origins

Origin of quadrillion¹

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

Word History and Origins

Origin of quadrillion¹

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