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octodecillion

American

[ok-toh-di-sil-yuhn] / ˌɒk toʊ dɪˈsɪl yən /

noun

plural

octodecillions,

plural

octodecillion

a cardinal number represented in the U.S. by 1 followed by 57 zeros, and in Great Britain by 1 followed by 108 zeros.

adjective

amounting to one octodecillion in number.

Other Word Forms

octodecillionth

adjective

Etymology

Origin of octodecillion

1935–40; < Latin octōdec ( im ) eighteen + English -illion, as in million

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.