octillion

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noun oc·til·lion \äk-ˈtil-yən\

Definition of octillion

  1. US :  a number equal to 1 followed by 27 zeros — see number table; also, British :  a number equal to 1 followed by 48 zeros — see number table

Origin and Etymology of octillion

French, from Middle French, from oct- octa- + -illion (as in million)


First Known Use: 1690

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