quintillion

[ kwin-til-yuhn ]

noun,plural quin·til·lions, (as after a numeral) quin·til·lion.
  1. a cardinal number represented in the U.S. by 1 followed by 18 zeros, and in Great Britain by 1 followed by 30 zeros.

adjective
  1. amounting to one quintillion in number.

Origin of quintillion

1
1665–75; <Latin quīnt(us) fifth + -illion (as in million)

Other words from quintillion

  • quin·til·lionth, noun, adjective

Words Nearby quintillion

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British Dictionary definitions for quintillion

quintillion

/ (kwɪnˈtɪljən) /


nounplural -lions or -lion
  1. (in Britain, France, and Germany) the number represented as one followed by 30 zeros (10 30): US and Canadian word: nonillion

  2. (in the US and Canada) the number represented as one followed by 18 zeros (10 18): Former Brit word: trillion

Origin of quintillion

1
C17: from Latin quintus fifth + -illion, as in million

Derived forms of quintillion

  • quintillionth, adjective

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