nonillion

noun, often attributive no·nil·lion \ nō-ˈnil-yən \

Definition of nonillion

US : a number equal to 1 followed by 30 zeros — see Table of Numbers; also, British : a number equal to 1 followed by 54 zeros — see Table of Numbers

Origin and Etymology of nonillion

French, from Latin nonus ninth + French -illion (as in million) — more at noon


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