vigintillionth
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vigintillionth — See vigintillion. * * * … Universalium
vigintillion — vigintillionth, adj. /vuy jin til yeuhn/, n., pl. vigintillions, (as after a numeral) vigintillion, adj. n. 1. a cardinal number represented in the U.S. by 1 followed by 63 zeros, and in Great Britain by 1 followed by 120 zeros. adj. 2. amounting … Universalium
