Dictionary.com

decillion

[ dih-sil-yuhn ]
/ dɪˈsɪl yən /

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.

QUIZZES

IS YOUR DESERT PLANT KNOWLEDGE SUCCULENT OR DRIED UP?

Cactus aficionados, don't get left in the dust with this quiz on desert plants. Find out if you have the knowledge to survive this prickly foray into the desert!
Question 1 of 7
This tall, horizontally branched cactus is probably the most recognizable cactus in Arizona. What is it called?
hedgehog
peyote
saguaro
jumping cholla
TAKE THE QUIZ TO FIND OUT

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. 2020

Example sentences from the Web for decillion

  • 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