[ uhn-di-sil-yuhn ]
/ ˌʌn dɪˈsɪl yən /
Save This Word!
noun, plural un·de·cil·lions, (as after a numeral) un·de·cil·lion.
a cardinal number represented in the U.S. by 1 followed by 36 zeros, and in Great Britain by 1 followed by 66 zeros.
amounting to one undecillion in number.
QUIZ YOURSELF ON "WAS" VS. "WERE"!
Were you ready for a quiz on this topic? Well, here it is! See how well you can differentiate between the uses of "was" vs. "were" in this quiz.
Question 1 of 7
“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.
Origin of undecillion
1930–35; <Latin undec(im) eleven (ūn(us) one + -decim, combining form of decemten) + -illion, as in million
OTHER WORDS FROM undecillionun·de·cil·lionth, adjective, noun
Words nearby undecillion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for undecillion
"An undecillion is ten raised to the 36th power," Freddy sighed, fearing that he wasn't getting through to Willy.Master of None|Lloyd Neil Goble