- a cardinal number represented in the U.S. by 1 followed by 33 zeros, and in Great Britain by 1 followed by 60 zeros.
- amounting to one decillion in number.
Origin of decillion
1835–45; < Latin dec(em) ten + -illion, as in million
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples 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
- (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)
C19: from Latin decem ten + -illion as in million