nonillion

From Wiktionary

Pronunciation[change]

Determiner[change]

Determiner
nonillion

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

Noun[change]

Singular
nonillion

Plural
nonillions

  1. The number 1,000,000,000,000,000,000,000,000,000,000
    One thousand octillion is a nonillion.