decillion

noun

de·​cil·​lion di-ˈsil-yən How to pronounce decillion (audio)
often attributive
US : a number equal to 1 followed by 33 zeros see Table of Numbers
also, British : a number equal to 1 followed by 60 zeros see Table of Numbers

Examples of decillion in a Sentence

Recent Examples on the Web Solving it would take 1.2 decillion moves (the number 1 followed by 33 digits). A.j. Jacobs, The Atlantic, 24 Apr. 2022 The scientists found that a proton’s building block, known as a quark, faces a pressure of 100 decillion Pascal near the center of a proton. David Grossman, Popular Mechanics, 17 May 2018 Physics theories suggest that sometime between 10^34 (1 decillion) and 10^64 (1 vigintillion) years from now, the protons found in the nuclei of all atoms will decay. NBC News, 20 Dec. 2017

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'decillion.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Latin decem + English -illion (as in million)

First Known Use

1844, in the meaning defined above

Time Traveler
The first known use of decillion was in 1844

Dictionary Entries Near decillion

Cite this Entry

“Decillion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/decillion. Accessed 21 Feb. 2024.

Kids Definition

decillion

noun
de·​cil·​lion di-ˈsil-yən How to pronounce decillion (audio)
US : a number equal to 1 followed by 33 zeros see number
also, British : a number equal to 1 followed by 60 zeros see number
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