[doo-oh-di-sil-yuh n, dyoo-]
noun, plural du·o·de·cil·lions, (as after a numeral) du·o·de·cil·lion.
  1. a cardinal number represented in the U.S. by 1 followed by 39 zeros, and in Great Britain by 1 followed by 72 zeros.
  1. amounting to one duodecillion in number.

Origin of duodecillion

1910–15; < Latin duodec(im) twelve + -illion, as in million
Related formsdu·o·de·cil·lionth, noun, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for duodecillion

Historical Examples of duodecillion

  • All the hairs on the heads of all human beings, which are supposed to be numberless, are only a small fraction of a duodecillion.