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undecillion

[uhn-di-sil-yuh n] /ˌʌn dɪˈsɪl yən/
noun, plural undecillions (as after a numeral) undecillion.
1.
a cardinal number represented in the U.S. by 1 followed by 36 zeros, and in Great Britain by 1 followed by 66 zeros.
adjective
2.
amounting to one undecillion in number.
Origin
1930-1935
1930-35; < Latin undec(im) eleven (ūn(us) one + -decim, combining form of decem ten) + -illion, as in million
Related forms
undecillionth, adjective, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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