decillion

[ dih-sil-yuhn ]

/ dɪˈsɪl yən /

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noun

a cardinal number represented in the U.S. by 1 followed by 33 zeros, and in Great Britain by 1 followed by 60 zeros.

adjective

amounting to one decillion in number.

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Origin of decillion

1835–45; <Latin dec(em) ten + -illion, as in million

OTHER WORDS FROM decillion

de·cil·lionth, adjective, noun

Words nearby decillion

deciduous trees and shrubs, decigram, decile, deciliter, decilitre, decillion, decimal, decimal classification, decimal currency, decimal fraction, decimalize

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use decillion in a sentence

The number of grains of sand in this sphere of the fixed stars would be a decillion decillion 6.
Astronomical Curiosities|J. Ellard Gore

British Dictionary definitions for decillion

decillion

/ (dɪˈsɪljən) /

noun

(in Britain, France, and Germany) the number represented as one followed by 60 zeros (10 60)

(in the US and Canada) the number represented as one followed by 33 zeros (10 33)

Derived forms of decillion

decillionth, adjective

Word Origin for decillion

C19: from Latin decem ten + -illion as in million

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012