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quadrillion

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noun qua·dril·lion \kwä-ˈdril-yən\

Simple Definition of quadrillion

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

Source: Merriam-Webster's Learner's Dictionary

Full Definition of quadrillion

  1. — see number table

quadrillion

adjective

quadrillionth

play \-yən(t)th\ adjective or noun

Origin and Etymology of quadrillion

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


First Known Use: circa 1690


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