quadrillion

[ kwo-dril-yuhn ]
/ kwɒˈdrɪl yən /

noun, plural quad·ril·lions, (as after a numeral) quad·ril·lion.

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.

QUIZZES

QUIZ YOURSELF ON THESE WORDS FROM BROWN GIRL DREAMING!

Visualize yourself passing this quiz on words from Jacqueline Woodson’s exquisite verse novel “Brown Girl Dreaming,” and then take the quiz to prove you can do it! (Because you can.)
Question 1 of 10
What does “barren” mean?
a cylindrical wooden container with slightly bulging sides.
Worn down by dullness, tedious repetition.
unproductive; unfruitful
TAKE THE QUIZ TO FIND OUT

Origin of quadrillion

1665–75; quadr- + -illion (as in million)

OTHER WORDS FROM quadrillion

quad·ril·lionth, noun, adjective

Words nearby quadrillion

quad right, quadrilateral, quadrilingual, quadriliteral, quadrille, quadrillion, quadrinomial, quadriparesis, quadripartite, quadripedal extensor reflex, quadriphonics
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for quadrillion

British Dictionary definitions for quadrillion

quadrillion
/ (kwɒˈdrɪljən) /

noun

(in Britain) the number represented as one followed by 24 zeros (10 24)US and Canadian word: septillion
(in the US and Canada) the number represented as one followed by 15 zeros (10 15)

determiner

  1. amounting to this numbera quadrillion atoms
  2. (as pronoun)a quadrillion

Derived forms of quadrillion

quadrillionth, adjective

Word Origin for quadrillion

C17: from French quadrillon, from quadri- + -illion, on the model of 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