noun, often attributive duo·de·cil·lion \ˌdü-ō-di-ˈsil-yən, ˌdyü-\

Definition of duodecillion

  1. US :  a number equal to 1 followed by 39 zeros — see number table; also, British :  a number equal to 1 followed by 72 zeros — see number table

Origin and Etymology of duodecillion

Latin duodecim twelve + English -illion (as in million)

First Known Use: 1844

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