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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)


determiner

    1. amounting to this number

      a quadrillion atoms

    2. ( as pronoun )

      a quadrillion

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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

The observatory on Pluto had reported a free planet passing within two hundred quadrillion miles of the solar system.

"Three quadrillion times, my son," replied his father with perfect accuracy and a spirit of hourly freshness.

Quadrillion, kwod-ril′yun, n. a million raised to the fourth power, represented by a unit with twenty-four ciphers.

They give off resonance waves, each one absolutely unique; there's about one chance in a quadrillion of a duplicate pattern.

Their velocity was six hundred and sixty quadrillion miles per second!

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quadrillequadrinomial