quadrillion
Americannoun
plural
quadrillions,plural
quadrillion-
a cardinal number represented in the U.S. by 1 followed by 15 zeros, and in Great Britain by 1 followed by 24 zeros.
adjective
-
amounting to one quadrillion in number.
noun
-
US and Canadian word: septillion. (in Britain) the number represented as one followed by 24 zeros (10 24 )
-
(in the US and Canada) the number represented as one followed by 15 zeros (10 15 )
determiner
-
-
amounting to this number
a quadrillion atoms
-
( as pronoun )
a quadrillion
-
Other Word Forms
- quadrillionth noun
Etymology
Origin of quadrillion
1665–75; quadr- + -illion (as in million )
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Google said in October that it handles more than 1.3 quadrillion tokens monthly, which is roughly 43 trillion daily.
From Barron's • Feb. 14, 2026
He noted Google’s announcement that it had processed 1.3 quadrillion monthly tokens in October, up from 480 trillion in April.
From MarketWatch • Nov. 4, 2025
This month, Google said the figure had reached 1.3 quadrillion.
From The Wall Street Journal • Oct. 14, 2025
The quadrillion boomer men and four Buddhist monks in performance-fabric bucket hats—what on earth were they hiding under there, besides their sun-sensitive scalps?
From Slate • Aug. 13, 2025
So we skip the pancakes with all the cooking and measuring, and jump to the eating—by the way, sausage sandwiches are always a quadrillion times better than TV dinners, that's for sure.
From "Sunny" by Jason Reynolds
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.