Pronunciation

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Determiner

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Determiner
undecillion

  1. (number) (ordinal undecillionth) The number 1,000,000,000,000,000,000,000,000,000,000,000,000

Singular
undecillion

Plural
undecillions

  1. The number 1,000,000,000,000,000,000,000,000,000,000,000,000
    One thousand decillion is a undecillion.