quadrillion
[ kwo-dril-yuhn ]
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.
Origin of quadrillion
1Other words from quadrillion
- quad·ril·lionth, noun, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
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
amounting to this number: a quadrillion atoms
(as pronoun): a quadrillion
Origin of quadrillion
1C17: from French quadrillon, from quadri- + -illion, on the model of million
Derived forms of quadrillion
- quadrillionth, adjective
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
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