octodecillion

noun
oc·​to·​de·​cil·​lion | \ ˌäk-tō-di-ˈsil-yən How to pronounce octodecillion (audio) \

Definition of octodecillion

US : a number equal to 1 followed by 57 zeros — see Table of Numbers also, British : a number equal to 1 followed by 108 zeros — see Table of Numbers

First Known Use of octodecillion

1848, in the meaning defined above

History and Etymology for octodecillion

Latin octodecim eighteen + English -illion (as in million)

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The first known use of octodecillion was in 1848

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Cite this Entry

“Octodecillion.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/octodecillion. Accessed 15 December 2019.

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