octillion

American  

[ok-til-yuhn] / ɒkˈtɪl yən /

noun

plural

octillions,

plural

octillion

1. a cardinal number represented in the U.S. by 1 followed by 27 zeros, and in Great Britain by 1 followed by 48 zeros.

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adjective

1. amounting to one octillion in number.

octillion British  

/ ɒkˈtɪljən /

noun

1. (in Britain and Germany) the number represented as one followed by 48 zeros (10 ⁴⁸ )

2. (in the US, Canada, and France) the number represented as one followed by 27 zeros (10 ²⁷ )

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Other Word Forms

• octillionth noun

Etymology

Origin of octillion

1680–90; < French, equivalent to oct- oct- + -illion, as in million

Example Sentences

Meanwhile, the Oxford Dictionary advises that the big number designations which follow quadrillion — quintillion, sextillion, septillion, octillion, nonillion and decillion — are not likely to appear in any financial context too soon.

From Washington Times • Sep. 11, 2017

At 30 octillion tons, it packs a bit more oomph than your standard human baby!

From Slate • Dec. 19, 2012

But the human body has more than a few to spare—altogether, there are about 7 octillion atoms in the average adult.

From "Meltdown" by Deirdre Langeland