quadrillion

play
noun qua·dril·lion \kwä-ˈdril-yən\

Definition of quadrillion

  1. US :  a number equal to 1 followed by 15 zeros — see number table; also, British :  a number equal to 1 followed by 24 zeros — see number table

quadrillion

adjective

quadrillionth

play \kwä-ˈdril-yən(t)th\ adjective or noun

Origin and Etymology of quadrillion

French, from Medieval French, from quadri- + -illion (as in million)


First Known Use: circa 1690


QUADRILLION Defined for English Language Learners

quadrillion

play
noun qua·dril·lion \kwä-ˈdril-yən\

Definition of quadrillion for English Language Learners

  • : the number 1,000,000,000,000,000 : one thousand trillion

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contemplative of or relative to the past

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