nonillion
a cardinal number represented in the U.S. by 1 followed by 30 zeros, and in Great Britain by 1 followed by 54 zeros.
amounting to one nonillion in number.
Origin of nonillion
1Other words from nonillion
- no·nil·lionth, noun, adjective
Words Nearby nonillion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use nonillion in a sentence
Researchers at the University of Georgia estimate that there are 5 nonillion bacteria on the planet—that’s a five with 30 zeros after it.
British Dictionary definitions for nonillion
/ (nəʊˈnɪljən) /
(in Britain, France, and Germany) the number represented as one followed by 54 zeros (10 54)
(in the US and Canada) the number represented as one followed by 30 zeros (10 30): Brit word: quintillion
Origin of nonillion
1Derived forms of nonillion
- nonillionth, adjective, noun
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
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