noun, plural quin·de·cil·lions, (as after a numeral) quin·de·cil·lion.
a cardinal number represented in the U.S. by 1 followed by 48 zeros, and in Great Britain by 1 followed by 90 zeros.
amounting to one quindecillion in number.
Origin of quindecillion
1900–05; < Latin quīndec(im) fifteen + -illion (as in million)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019