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1. The cardinal number equal to 1048.
2. Chiefly British The cardinal number equal to 1090.
[Latin quīndecim, fifteen (quīnque, five; see penkwe in Indo-European roots + decem, ten; see deci-) + (m)illion.]
quin′de·cil′lionth adj.adv. & n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(in long scale) the number represented as one followed by 90 zeros (1090)(in short scale) the number represented as one followed by 48 zeros (1048)
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
quin•de•cil•lion(ˌkwɪn dɪˈsɪl yən)
n., pl. -lions, (as after a numeral) -lion, n.
1. a cardinal number represented in the U.S. by 1 followed by 48 zeros, and in Great Britain by 1 followed by 90 zeros.adj.
2. amounting to one quindecillion.
[1900–05; < Latin quīndec(im) fifteen + -illion (as in million)]
quin`de•cil′lionth, adj., n.
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